Question

What is the answer for 6th Question?? And how!?

Answer 1

Answer:

sinQ =cosQ

Q is 45

then

sin^4Q+cos^4Q

=2sin^4Q

=2×1/4

=1/2

ok

follow me

guys

Answer 2

since sin theta-cos theta=0

therefore

sin theta=cos theta

sin theta=sin 90-theta

theta=90-theta

theta=45

putting these value in the given equation

we get

(1/√2)^4+(1/√2)^4

2(1/4)

1/2

therefore option C is correct.