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3 years ago

11

How do you simplify sin 4 theta using the double angle theory?

1 answer:

S_A_V [24]3 years ago

3 0

Double angle formulae involve trigonometric functions of double angles and in order to get its value you must consider the following:
-derive the double angle formula from additional formula
-write the formula for the angle in alternative form
-use the formula to write trigonometric expressions in different forms
-use the formula in the solution of trigonometric equations

And the answer would be 4sin(theta)cos(theta)cos(2theta)

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