Question

in right angled yxz ,x=90 ,xz=8cm yz =17cm,find siny,cos y , tan y ,sin z,cos z,tan z .
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Answer 1

Answer:

XZ = 8 cm, YZ = 17 cm … [Given] In ∆YXZ, ∠X = 90° … [Given] ∴ YZ2 = XY2 + XZ2 ... [Pythagoras theorem] ∴ 172 = XY2 + 82 ∴ 289 = XY2 + 64 ∴ XY2 = 289 – 64 = 225 ∴ x = √225 ...[Taking square root of both sides] = 15