Question

sin 15 into secant 75​

Answer 1

$\huge{ \underline{ \mathfrak{ \green{ \: Answer}}}}$

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→ sin15⁰ × sec75⁰

→ sin(90⁰ - 75⁰) × sec75⁰

→ cos75⁰ × sec75⁰ → because sin(90 - ∅) = cos∅

→cos75⁰ × $\frac{1}{cos75}$ [because cos ∅ = 1/sec∅]

$\implies$1