Question

Evaluate sin 25 degree divide by cos 65 degree whole square plus tan 65 degree dibided by cot 25 degree whole square

Answer 1

Answer:

Step-by-step explanation:

(sin25/cos65)² + (tan65/cot25)²

= (Sin(90-65)/Cos65)² + (Tan(90-25)/Cot25)²

= (Cos65/Cos65)² + (Cot25/Cot25)² (∵Sin(90-θ) = Cosθ; Tan(90-θ) = Cotθ))

= 1 + 1

= 2