Trigonometry questions | form five Pure Advanced Mathematics

(4950) Question Category: Mathematical Calculation

If small 	an 	heta =frac{4}{3}  and small 0degreeleq 	heta leq 360degree find without using tables the value of small 	an (frac{1}{2}	heta)

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(4951) Question Category: Mathematical Calculation

Show that small frac{cos 3x-cos 5x}{4sin 2x cos 2x}=sin x.

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(4952) Question Category: Mathematical Calculation

Given that small tan^{-1}A + tan^{-1}B+tan^{-1}C=pi verify that A+B+C=ABC

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(4953) Question Category: Mathematical Calculation

FInd the value of angle A in triangle ABC which is such that a=10, b= 12 and c=9

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(4954) Question Category: Mathematical Calculation

Simplify sin ^{-1}(cos x)

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