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Some Applications Of Trigonometry

Question

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Evaluate:
$cos left parenthesis 40 degree plus straight theta right parenthesis space minus space sin left parenthesis 50 degree minus straight theta right parenthesis plus fraction numerator cos squared 40 degree plus cos squared 50 degree over denominator sin squared 40 degree plus sin squared 50 degree end fraction$

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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