Trigonometry

Please solve Q 35 and 36.
Answers are A and D respectively.

@rithviksubash
Write 1+sinx as (sin(x/2) + cos(x/2))^2 and 1sinx as (sin(x/2) cos(x/2))^2 then open the mod according to the angle range given in the q.

@rithviksubash is ans not B for second??
I feel this sud be the ans...

@advaitgirap thank you.