Math, asked by sateeshupadhyay897, 9 months ago

evalute:cos3A -cos4A/sin 3A+sin 4A,when A=15degree

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Answered by homework39

1

Answer:

Cos45° = 1/√2 = Sin45°

Cos45° = 1/√2 = Sin45° Cos60° = 1/2

Cos45° = 1/√2 = Sin45° Cos60° = 1/2 Sin60° = √3/2

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