if sin teta=11/61,find the values of cos teta using trigonometric identity.
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sin teta = perpendicular/hypotenuse
.°. Perpendicular=11 and hypotenuse =61
and cos teta = base/hypotenuse
.°. BASE = √(61^2-11^2)
=√(3721-121) = 60
.°. cos teta = 60/61
.°. Perpendicular=11 and hypotenuse =61
and cos teta = base/hypotenuse
.°. BASE = √(61^2-11^2)
=√(3721-121) = 60
.°. cos teta = 60/61
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