SOLUTION: Verify the identify cos^2x-sin^2x=2cos^2x-1 Thank you in advance
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-> SOLUTION: Verify the identify cos^2x-sin^2x=2cos^2x-1 Thank you in advance
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Question 1005320
:
Verify the identify
cos^2x-sin^2x=2cos^2x-1
Thank you in advance
Found 2 solutions by
ikleyn, MathTherapy
:
Answer by
ikleyn(52824)
(
Show Source
):
You can
put this solution on YOUR website!
.
Verify the identify
cos^2x - sin^2x = 2cos^2x - 1
--------------------------------------
Add
to both sides.
Answer by
MathTherapy(10555)
(
Show Source
):
You can
put this solution on YOUR website!
Verify the identify
cos^2x-sin^2x=2cos^2x-1
Thank you in advance
Left side:
-------- Substituting
for
(VERIFIED)
