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Amitesh Kumar
Subject: Maths
, asked on 13/5/18
If one root of the equation
$\left|\begin{array}{ccc}7& 6& {x}^{2}-13\\ 2& {x}^{2}-13& 2\\ {x}^{2}-13& 3& 7\end{array}\right|=0\mathrm{is}x=2$
, the sum of all other five roots is
(a)
$2\sqrt{15}$
(b) –2 (c)
$\sqrt{20}+\sqrt{15}-2$
(d) None of these
Answer
1
Dharmveer Gautam
Subject: Maths
, asked on 23/4/18
Tell me the answer of these questions with steps ?
Q.
What is the difference b/w them
$1-1\xf71-1=?\frac{1-1}{1-1}=?$
Answer
1
Riya Verma
Subject: Maths
, asked on 3/4/18
Why does the insurance companies, banks etc use the compound interest method to calculate the amount of interest instead of simple interest method? As compound interest method shows higher amount of interest as compared to the other one.
Answer
1
Divya Mahesh
Subject: Maths
, asked on 3/3/18
Solve this:
3.
If p: Sun rises in the west
q : 2 + 3 = 5
write the truth value of the statement p or q.
Answer
1
Tanmaya Darisi
Subject: Maths
, asked on 8/2/18
Contrapositive of statement from chapter Mathematical Reasoning
Q2. Write the contrapositive of the given statement ; p : If there are clouds then it will rain.
Answer
1
Divyansh Saxena
Subject: Maths
, asked on 2/2/18
4 players a,b,c,d are playinf with a ball giving catches to each other .if a start giving catches to any of the players b,c,d then find the no of ways in which the ball can return to a when it is known that player cant catch the ball more than 2 times???
Answer
1
Devansh Mehta
Subject: Maths
, asked on 20/1/18
Q. A furniture dealer deals in two items, tables md chairs. He has 15,000 to invest and a space to store 60 pieces. A table costs him Rs. 150 and chair Rs. 750. Formulate the data in the form of inequation and the feasible solution graphically.
Answer
1
Devansh Mehta
Subject: Maths
, asked on 20/1/18
Q. Find the feasible solution of ineaqations x + 4y
$\le $
24, 3x + y
$\le $
21, x+y
$\le $
9, x
$\ge 0,y\ge 0$
Answer
1
Devansh Mehta
Subject: Maths
, asked on 20/1/18
Q. If
$\overline{a}and\overline{b}$
are two vectors such that
$\left|\overline{a}\right|=10,\left|\overline{b}\right|=2and\left|\overline{a}x\overline{b}\right|=12find\overline{a},\overline{b}$
Answer
1
Devansh Mehta
Subject: Maths
, asked on 20/1/18
Q. If the position vectors of points A, B,C and D are given by
$\overline{a}=2\hat{i}+3\hat{j}+4\hat{k},$
$\overline{b}=5\hat{i}+4\hat{j}-\hat{k},$
$\overline{c}=3\hat{i}+6\hat{j}+2\hat{k}and\overline{d}=-2\hat{i}+6\hat{j}-\hat{k}$
respectively, show that
$\overline{AB}\perp \overline{CD}$
.
Answer
1
Devansh Mehta
Subject: Maths
, asked on 19/1/18
Q. Find the feasible solution of inequations 3x+2y
$\le $
18, 2x+y
$\le $
10, x
$\ge $
0, y
$\ge $
0.
Answer
1
Devansh Mehta
Subject: Maths
, asked on 19/1/18
Q. no 6 plz solve.
$If\overrightarrow{a}+\overrightarrow{b}=\overrightarrow{c}and\left|\overrightarrow{a}\right|=4\sqrt{3},\left|\overrightarrow{b}\right|=4,\left|c\right|=8,findtheanglebetween\overrightarrow{a}and\overrightarrow{c}$
Answer
1
Devansh Mehta
Subject: Maths
, asked on 19/1/18
Q. Find the acute angle between the vectors
$4\hat{i}-3\hat{j}+3\hat{k}and2\hat{i}+\hat{j}+2\hat{k}$
Answer
1
Devansh Mehta
Subject: Maths
, asked on 19/1/18
Qno.4 please solve
Q.No.4.
A furniture dealer deals in two items, tables and chairs. He has 15,000 to invest and a space to store 60 pieces. A table costs him Rs. 150 and a chair Rs 750. Formulate the data in the form of inequation and find the feasible solution graphically.
Answer
2
Devansh Mehta
Subject: Maths
, asked on 19/1/18
Qno.2 solve plz
Q.No.2 If
$\overline{)\mathrm{a}}\mathrm{and}\overline{)\mathrm{b}}\mathrm{are}\mathrm{two}\mathrm{vectors}\mathrm{such}\mathrm{that}\left|\overline{)\mathrm{a}}\right|=10,\left|\overline{)\mathrm{b}}\right|=2\mathrm{and}|\overline{)\mathrm{a}}\times \overline{)\mathrm{b}}|=12,\mathrm{find}\overline{)\mathrm{a}},\overline{)\mathrm{b}}$
Answer
1
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Next
What are you looking for?

(a) $2\sqrt{15}$ (b) –2 (c) $\sqrt{20}+\sqrt{15}-2$ (d) None of these

Q.What is the difference b/w them$1-1\xf71-1=?\frac{1-1}{1-1}=?$

3.If p: Sun rises in the westq : 2 + 3 = 5

write the truth value of the statement p or q.

Q2. Write the contrapositive of the given statement ; p : If there are clouds then it will rain.

Q. A furniture dealer deals in two items, tables md chairs. He has 15,000 to invest and a space to store 60 pieces. A table costs him Rs. 150 and chair Rs. 750. Formulate the data in the form of inequation and the feasible solution graphically.

Q. If $\overline{a}and\overline{b}$ are two vectors such that $\left|\overline{a}\right|=10,\left|\overline{b}\right|=2and\left|\overline{a}x\overline{b}\right|=12find\overline{a},\overline{b}$

Q. If the position vectors of points A, B,C and D are given by $\overline{a}=2\hat{i}+3\hat{j}+4\hat{k},$ $\overline{b}=5\hat{i}+4\hat{j}-\hat{k},$ $\overline{c}=3\hat{i}+6\hat{j}+2\hat{k}and\overline{d}=-2\hat{i}+6\hat{j}-\hat{k}$ respectively, show that $\overline{AB}\perp \overline{CD}$.

Q. Find the feasible solution of inequations 3x+2y$\le $18, 2x+y$\le $10, x$\ge $0, y$\ge $0.

$If\overrightarrow{a}+\overrightarrow{b}=\overrightarrow{c}and\left|\overrightarrow{a}\right|=4\sqrt{3},\left|\overrightarrow{b}\right|=4,\left|c\right|=8,findtheanglebetween\overrightarrow{a}and\overrightarrow{c}$

Q. Find the acute angle between the vectors $4\hat{i}-3\hat{j}+3\hat{k}and2\hat{i}+\hat{j}+2\hat{k}$

Q.No.4.Q.No.2 If $\overline{)\mathrm{a}}\mathrm{and}\overline{)\mathrm{b}}\mathrm{are}\mathrm{two}\mathrm{vectors}\mathrm{such}\mathrm{that}\left|\overline{)\mathrm{a}}\right|=10,\left|\overline{)\mathrm{b}}\right|=2\mathrm{and}|\overline{)\mathrm{a}}\times \overline{)\mathrm{b}}|=12,\mathrm{find}\overline{)\mathrm{a}},\overline{)\mathrm{b}}$