Given 15 cot A = 8, find sin A and sec A
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Step-by-step explanation:
SWER
Given,
15cotA=8
cotA=158
=> tanA=815-------(tanA=cotA1)
We know that,
tanθ=adjacentSideoppositeSide
Consider the attached figure, triangleABC
From Pythagoras theorem,
AC2=AB2+BC2
AC2=82+152=64+225=289
AC=17
cosA=HypotenuseadjacentSide=ACAB=178
secA=cosA1=1781817
sinA=Hypo
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