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Question

If cos cosθ=725, find the values of all T-ratios of θ

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Solution

cosθ=725
Therefore,
Base = 7cm
Hypotenuse = 25cm

By Pythagoras Theorem,
h2=p2+b2
p2=h2b2
p2=25272=62549
p=576=24cm

Perpendicular = 24cm

sinθ=ph=2425

cosθ=725 [given]

tanθ=pb=247

cosecθ=2524[1sinθ]

secθ=257[1cosθ]

cotθ=724[1tanθ]


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