Question

10 Find the value of Sino + + cos²o+1​

Answer 1

Answer:

Correct option is A)

3tanθ=1

⇒tanθ=31

⇒θ=60°

∴sin2θ−cos2θ=sin2θ−cos2θ

                               =(23)2−(21)2

                               =43−41

                               =21

Hence, the answer is 0.5.

Answer 2

Answer:

2

Step-by-step explanation:

sin0 =0

cos^2 0=1

=0+1*2+1

=1+1

=2