What is componendo and dividendo method? Plz explain.

cos20.cos40.cos80=1/8

Prove that.....Tan 70 = tan 20 + 2 tan 50...

what is (a+b+c)whole square

sir how to solve quadratic inequalities by wavy curve method

if a^{2}, b^{2},c^{2 }are in a A.P .then prove that the following are also in A.P (i) 1/b+c ,1/c+a ,1/a+b (ii) a/b+c , b/a+c ,c/b+a

Find the sum to n terms of the series :- 5 + 11 + 19 + 29 + 41 +..........

Solve Sinx + Sin3x + Sin5x = 0.

what is set - builder form and roster form

The letters of the word 'RANDOM' are written in all possible ways and these words are written out as in a dictionary.Find the rank of the word 'RANDOM'?

A COLLEG AWARDED 38 MEDALS IN FOOTBALL,15 IN BASKET BALL AND 20 IN Cricket .if these medals went to a total of 58 men and only 3 men got medals in all the three sports hw many received medals in exactly two of the sports? plz answer wid explaination

sin 20 sin 40 sin 60 sin 80=3/16

Find the coordinates of foot of perpendicular from the point (2,3) to the line 3x+4y+8=0.

What is componendo and dividendo method? Plz explain.

cos20.cos40.cos80=1/8

Prove that.....Tan 70 = tan 20 + 2 tan 50...

what is (a+b+c)whole square

sir how to solve quadratic inequalities by wavy curve method

if a

^{2}, b^{2},c^{2 }are in a A.P .then prove that the following are also in A.P (i) 1/b+c ,1/c+a ,1/a+b (ii) a/b+c , b/a+c ,c/b+aFind the sum to n terms of the series :- 5 + 11 + 19 + 29 + 41 +..........

Solve Sinx + Sin3x + Sin5x = 0.

what is set - builder form and roster form

The letters of the word 'RANDOM' are written in all possible ways and these words are written out as in a dictionary.Find the rank of the word 'RANDOM'?

A COLLEG AWARDED 38 MEDALS IN FOOTBALL,15 IN BASKET BALL AND 20 IN Cricket .if these medals went to a total of 58 men and only 3 men got medals in all the three sports hw many received medals in exactly two of the sports? plz answer wid explaination

sin 20 sin 40 sin 60 sin 80=3/16

Find the coordinates of foot of perpendicular from the point (2,3) to the line 3x+4y+8=0.