sin91
15.11.2019 •
Mathematics
Directions: verify whether the identity is true while only working on one side of the equation.
1 - 2sin^2(x) = 2cos^2(x) - 1
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Ответ:
Proved that .
Step-by-step explanation:
We know the following identity as .......... (1) and we commonly use this identity as a formula.
Now, rearranging the identity we get
⇒
⇒
⇒
⇒
Hence, proved that . (Answer)
Ответ: