bassicallytristen
25.11.2020 •
Mathematics
HELP ASAP PLZ Given sinx = 2/3 and cos < 0
a) Use double identities to find the exact values of sin2x and cos2x
I got cos2x =1/9 and sin2x =
I'm just confused on how to do b & c.
b) Use a Pythagorean Identity to verify the answers you found for sin2x and cos2x.
c) Use a Ratio Identity to find tan2x. Do not use the double angel identity for tangent.
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Ответ:
use a calculator
Step-by-step explanation:
Ответ:
The simple answer is C Why because the answer is 49 π CM square2 That is the right answer
Step-by-step explanation: