Question

value of sin theta. Cos(90 degree - theta) +cos theta. Sin(90 degree - theta)

-1
1
0
2​

Answer 1

option B

sin@Cos(90 - @) + cos@ sin(90 - @)

sin^2@ + cos^2@

1

Answer 2

Answer:

sin@×cos(90-@) + cos@×sin(90-@)

=sin@×sin@ + cos@×cos@

=sin²@ + cos²@

=1

option B

i hope it helped you!