Question

sin a +cos b if 0= 60⁰

Answer 1

Step-by-step explanation:

R.E.F.Image.

sinθ=cos60

∘

∴sinθ=

2

1

tanθ=

3

1

∴3tan

2

θ−1=3(

3

1

)

2

−1

=3×

3

1

−1

=1−1

=0 Ans