817
1517
1617
1317
Correct answer is B
cotθ = 1cosθ
= 815(given)
tanθ = 1518
By Pythagoras theorem,
x2 = 152 + 82
x2 = 225 + 64 = 289
x = √289
= 17
Hence sinθ = 15x
= 1517
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