(sin 2A)/( 1+ cos 2A) . (cos A)/( 1+ cos...

`(sin 2A)/( 1+ cos 2A) . (cos A)/( 1+ cos A)=`............... A) `tan""A/2` B) `cot ""A/2` C) `sec ""A/2` D) `cosec ""A/2`

A

`tan""A/2`

B

`cot ""A/2`

C

`sec ""A/2`

D

`cosec ""A/2`

Verified by Experts

The correct Answer is:

A

Similar Questions

Explore conceptually related problems

(1+ sin A- cos A)/( 1+ sin A + cos A)= .................... A) sin ""A/2 B) cos ""A/2 C) tan ""A/2 D) cot ""A/2

(sin 3A -cos ((pi)/(2)-A))/(cos A+ cos (pi+3A))= ................. A) tan A B) cot A C) tan 2A D) cot 2A

cosec A -2 cot 2A cos A= ................ A) 2 sin A B) sec A C) 2 cos A cot A D) cos A

cosec A- 2cot 2A cos A=

(1)/(tan 3 A - tan A)- (1)/(cot 3 A - cot A)= .............. A) tan A B) tan 2A C) cot A D) cot 2A

(sin^2A- sin^2B)/( sin A cos A-sin Bcos B) = .............. A) tan (A-B) B) tan (A+B) C) cot (A-B) D) cot (A+B)

If tan ""A/2 =3/2, then (1+ cos A)/(1- cos A)= ................ A) -5 B) 5 C) 9/4 D) 4/9

The value of the expression 1- (sin^(2)y)/(1+ cos y) + (1+ cos y)/(sin y) -(sin y)/(1- cos y) is .................. A) 0 B) 1 C) sin y D) cos y

cos 1^(@) ."" cos 2^(@) ."" cos 3^(@) "…." cos 179 ^(@)= ................. A) 0 B) 1 C) -1/2 D) -1

2 sin A cos ^(3) A-2 sin ^(3) A cos A= ................. A) sin 4A B) 1/2 sin 4 A C) 1/4 sin 4A D) 1/8 sin 4A