Question

evaluate cosec^2 30 degree sin ^2 45 degree - sec ^2 60 degree​

Answer 1

Answer:

Evaluate :

Cosec2 30° - sin2 45° -sec2 60°

Solution :

We know that

Cosec 30° = 2, sin45° = 1/√2 and sec60° =  2

therefore  cosec2 30 × sin2 45° - sec2 60° = 2×2 -1/2-4 = -1/2

hence cosec2 30°- sin2 45° - sec2 60° =  -1/2

___________follow me mate _______nd mark me as brainliest answer___