ashleewilson6412 ashleewilson6412

30-07-2017
Mathematics

contestada

Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal. cos x - cos x sinx = cos3 x

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ericwong2002052 ericwong2002052

18-06-2018

The answer is 0 because 180 degrees does not make a valid statement

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leschatsdeleon leschatsdeleon

14-04-2019

Answer:

The answer is pi/4

Step-by-step explanation:

You substitute each x for "pi/4", you will see that the equation is incorrect, the two values are no longer equal.

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