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Some Applications Of Trigonometry

Question

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Evaluate:
$fraction numerator sin squared 20 degree plus sin squared 70 degree over denominator cos squared 20 degree plus cos squared 70 degree end fraction plus fraction numerator sin left parenthesis 90 degree minus straight theta right parenthesis. sinθ over denominator tanθ end fraction plus fraction numerator cos left parenthesis 90 degree minus straight theta right parenthesis. space cosθ over denominator cotθ end fraction$

Solution

Solution not provided.

Some More Questions From Some Applications of Trigonometry Chapter

Choose the correct option and justify your choice:
sin 2A = 2 sin A is true when A =
(A) 0° (B) 30° (C) 45° (D) 60°

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