Question

5 sin 50° sec 40° - 3 cos 59° cosec 31º.​

Answer 1

Answer:

2

Explanation given below

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Step-by-step explanation:

=> 5 sin 50° sec(90°-50°) - 3 cos 59° cosec(90°-59°)

=>5 sin 50° cosec 50° - 3 cos 59° sec 59°

[Since cosec and sec are the complements of sec and cosec respectively]

=>5 sin 50° × 1/sin 50° - 3 cos 59° × 1/cos 59°

=>5 × 1 - 3×1

=>5 -3

=>2