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Some Applications Of Trigonometry

Question

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Evaluate:
$fraction numerator cos space 70 degree over denominator sin space 20 degree end fraction plus fraction numerator cos space 55 degree cross times cosec space 35 degree over denominator tan space 5 degree cross times tan space 25 degree cross times tan space 45 degree cross times tan space 65 degree cross times tan space 55 degree end fraction$

Solution

Solution not provided.
Ans. 2

Some More Questions From Some Applications of Trigonometry Chapter

In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm. Determine:
(i) sin A cos A,
(ii) sin C, cos C.

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