If sinθ is given and θ is an acute angle, find the value of (1 + cot²θ).
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Correct answer: B
Explanation
sinθ = 5/13
Perpendicular = 5
Hypotenuse = 13
Base = √(13² − 5²)
= √144 = 12
cotθ = 12/5
= 1 + cot²θ
= 1 + (12/5)²
= 1 + 144/25
= 169/25