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Some Applications Of Trigonometry

Question

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Evaluate: $4 left parenthesis sin to the power of 4 30 degree plus cos to the power of 4 60 degree right parenthesis minus 2 over 3 left parenthesis sin squared 60 degree minus cos squared 45 degree right parenthesis plus 1 half tan squared 60 degree$

Solution

Solution not provided.
Ans. $11 over 6$

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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