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High School Mathematics - 2
10.10 Trignometry Ratios of Certain Specific Angles
Answer the following questions. Also write at least 10 examples of your own.
: If (cos A + 1)/sin A = 5, then show that cos A = 12/13
: If tan A =
2 - 1, show that sin A.cos A =
: If 7 sin
θ + 3 cos
θ = 4, show that tan θ = 1/
: If sec θ = 5/4, prove that (sin θ - 2 cos θ)/ (tan θ - cot θ) = 12/7
: If tan A = 1/
3, show that sin A.cos B + cos A.sin B = 1
: If tan α = 2, prove that sin α.sec α + tan
α - cosec α = (12 -
: If sin α = 3, prove that cos α. cosec &alphaα + tan α.secα = (16
2 + 3)/8
: If 7 sin A = 24 cos A, prove that 14 tan A + 25 cos A - 7 sec A = 30.
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