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Syllabus

What Is a proof for midpoint theorem ?

4x 5y = 20 to the circle x

^{2}+ y^{2}= 9 is(A) 20(x

^{2}+ y^{2}) 36x + 45y = 0 (B) 20(x^{2}+ y^{2}) + 36x 45y = 0(C) 36(x

^{2}+ y^{2}) 20x + 45y = 0 (D) 36(x^{2}+ y^{2}) + 20x 45y = 04+7+2 = 281435

7+3+9 = 212781

6+2+7 = 121456

8+4+6 = .............

and explain it

anand earns rs80 in 7 hours . parmod rs 90 in 12 hours ....find ratio of earning...plzz ans. in 2 min..

47.The function f : [0, 3] [1, 29], defined by f(x) = 2x^{3}15x^{2}+ 36x + 1, is(A) one-one and onto (B) onto but not one-one

(C) one-one but not onto (D) neither one-one nor onto

http://cbse.meritnation.com/study-online/ncert-solutions/math/11/5147/mathematical-reasoning/state-the-converse-and-contrapositive-of-e

in d 2nd bit y r v changing d sentence n thn writing converse n contra positive

_{3}M + 3 log_{3 }N = 1 + log_{0.008}5then,

1.) M

^{9 }= 9 / N2.) N

^{9 }= 9/ M3.)M

^{3}= 3/N4.) N

^{9}= 3/MWhich of the following is correct ?

B = 1+1 (0-1)

Then, which of the following statement is true.

a) A > B b) B < A c) A= B

Vector equation of the plane passing through points A(a) , B(b) and parallel to the vector c is [ r b c] + [ r c a] = [ a b c] ........ prove this plz....What is the value of log(infinity) ?

A) 99

^{2 }B) 2^{99}? ? ? ? ?=30

Fill the boxes using

(1, 3, 5, 7, 9, 11, 13, 15)

U can also repeat the numbers.

This question came in UPSC Final Exams held in Dec 2013.

You will be glad to note that only Gaurav Agarwal (IAS Topper) could solve it.

_{0.5}log_{5}(x^{2}- 4) > log_{0.5}1 , then 'x' lies in which interval .The number N = 6 log

A_{10}2 + log_{10}31, lies between two successive integers whose sum is equal to5

B7

C9

[

]CORRECT ANS IS (B)If vector a=i(cap)+j(cap)+k(cap) and vector b= j(cap)-k(cap), find a vector c such that 'a' cross 'c' is vector b and 'a' dot 'c' is 3

i cant understand the last example (example 3). So kindly explain in a better way..

_{a}b=2 ; log_{b}c=2 and log_{3}c=3+log_{3}a then (a+b+c) equals .... ?can i hav correct definition and eg to undersatand easily fast of above topics

a) 24 oranges, 36 bananas, 10 pears

b) 12 oranges, 30 bananas, 45 pears

c) 42 oranges, 18 bananas, 72 pears

d) 60 oranges, 54 bananas, 32 pears

i have a question ..

Find the sum up to

nterms of the sequence:0.7, 0.77, 0.777,....

a)26 (b)31 (c)39 (d) none of these

a man buys 3 cows and 8 goats in 47200. instead , if he would have bought 8 cows and 3 goats , he had to pay 53000 more. cost of one cow

Each statement has three segments. Choose the

alternative where the third segment in the

statement can be logically deduced using both

the preceding two but not just from one of them.

(A) Dinosaurs are pre-historic creatures. Water-

buffaloes are not dinosaurs. Water buffaloes

are not pre-historic creatures.

(B) All politicians are frank. No frank people

are crocodiles. No crocodiles are

politicians.

(C) No diamond is quartz. No opal is quartz.

Diamonds are opals.

(D) All monkeys like bananas. Some GI Joes

like bananas. Some GI Joes are monkeys.

(1) C only

(2) B only

(3) A and D

(4) B and C

S434S0

What number must be sussitituted with S to make it divisible by 36?

Three blocks of masses m1=4kg m2=2kg and m3=4kg are connected with ideal strings over a smooth massless pulley. The acceleration of blocks will be what?? (g=10)

The given statement can be written in the form of if-then as follows.

Ifaandbare real numbers such thata

^{2}=b^{2}, thena=b.Letp:aandbare real numbers such thata

^{2}=b^{2}.q:a=b

The given statement has to be proved false. For this purpose, it has to be proved that ifp, then ∼q. To show this, two real numbers,aandb, witha

^{2}=b^{2}are required such thata≠b.Leta= 1 andb= 1

a

^{2}= (1)^{2}= 1 andb^{2}= ( 1)^{2}= 1∴a

^{2}=b^{2}^{log 7 to the base 3}= 27 ; b^{log 11 to the base 7}= 49 ;c

^{log 25 to the base 11}= (11)^{1/2}. The value of [ a^{(}^{log 7 to the base 3)whole squared}+ b^{(log 11 to the base 7)whole squared}+ c^{(log 25 to the base 11)whole squared}] equals .... ???what is the

negationof the sentence “Rourkela is not an industrial area in Orissa”What is Euler's theorem?

consider the multiplication in decimal notation(999).(abc)=def132 determine the digits a,b,c,d,e,f

write the contrapositive of :

if a number is divisible by 9, then it is divisible by 3.

from where cn i study about tautology and fallacy for the upcoming jee mains

How to solve log(1+2+3)=log1+log2+log3

a train crosses two bridges of length 500m and 280m in 35 seconds and 24 seconds respectively. find the length of the train.

^{0}not defined? please help me out.if a:b=c:d , prove that a square c+ a c square :b square d + b d square =(a + c)cube :( b +d)cube .

write the converse of the following statement ''if I slap you then you will cry''

a student obtained the mean n standaard deviation of 100 observation as 40 n 5.1 respectively it was later found that one observation was wrongly copied as 50 the correct figure being 40. find the correct mean and S.D.

PLZZZZZZZ HELP

A is the father of B and D is the son of C. E is the brother of A and E also has a daughter F. If C is the sister of A, then what is the relation between F, B and D?

There are 35 days in a month state whether it is a statement

If x = 2

^{1/3}+ 2^{2/3}, then the value of x^{3}− 6x iscan u say which type 1 mark q will be availiable from this leson

Answer.: As, NEWS = (16+7+25+21)^2 = 69^2 = 4761, in similar way TJWR = (22+12+25+20)^2 = 79^2 = 6241, There is option (D) which is 6241, and this option (D) is correct. The question is great. As there is no answer I am attaching bothe answer and question together.

Write the contrapositive of the following statement:

"If a number is divisible by 9, then it is divisible by 3".

in the above example cant we write the negation of q statement as

∼

q: “Not every leaf in this plant is green in colour”.1.Two large vertical and parallel metal plates having a separation of 1 cm are connected to a DC voltage source of potential difference X. A proton is released at rest midway between the two plates. It is found to move at 45 to the vertical JUST after release. Then X is nearly(A) 1 10

^{5 }V (B) 1 10^{7 }V (C) 1 10^{9 }V (D) 1 10^{10 }Vlog

_{2}x +log_{x}2 =??pls help me answer this question