Question

can anyone solve this.U can do anyone among these.Please solve this​

Answer 1

Answer:

for question 37...

answer will be in this form only unless some values are not given(>ω<)

Answer 2

Answer:

for 37

sinA=cosA means

A=45°

then 2(tanA)^2+ (sinA)^2-1

2(1)^2+(1/√2)^2-1

2+1/2-1

=3/2

for 38

5sinA=12 cosA

gives sinA/cosA=12/5

tanA=12/5

then

sinA+cosA=tanA+1 =12/5 +1=17/5 (when divided by cosA)

and 2cosA-sinA=2-tanA= 2-12/5 =-2/5

answer is17/-2=-17/2

for 39

Theta=45°

and pi=15°