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anonymous
 3 years ago
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
pi/4 or pi/2 ??????
anonymous
 3 years ago
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 pi/4 or pi/2 ??????

This Question is Closed

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1cospi/2 = 0 soo thats not it

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0it would be 0... thank u

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1now that depends on of its \(\cos^3x\) or \(\cos 3x\)
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