Understanding the Product-to-Sum Formulas
Автор: Study Force
Загружено: 2020-02-26
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Q. Write the product as a sum or difference containing only sines or cosines.
a) sin4θ cos2θ
b) cos〖(19θ/2) sin(θ/2) 〗
Q. Determine the exact value of the expression without using a calculator.
sin〖(3π/8) cos(π/8) 〗
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