Question

Solve the equation for :
cos² e
cot 0 - cosa​

Answer 1

Answer:

xyz

zzzzzzz

zz

z

x

x

x

x

x

x

x

x

x

Answer 2

Explanation:

cos2θ+sinθ+1=0⟹1−sin2θ+sinθ+1=0

⟹ (1−sinθ)(1+sinθ)+(1+sinθ)=0

⟹ (1−sinθ+1)(1+sinθ)=0

⟹sinθ=−1  (∵sinθ=2)

⟹θ=3π/2

∴θ  lies in the interval  (45π,47π)