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Kitty [74]
3 years ago
13

ANSWER QUICKLY PLZZZZZZ ASAP READ QUESTIONS CAREFULLY ​

Mathematics
2 answers:
STALIN [3.7K]3 years ago
8 0

Answer: 0.6 or 60%

Step-by-step explanation: Uh calculator

rewona [7]3 years ago
7 0

Answer:

a) 60 %

b) 55%

These are the answers.

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Factor the Polynomial. 3a^2+9
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<span>3a^2+9
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3 years ago
Verify sin^4x − sin^2x = cos^4x − cos^2x is an identity
Inga [223]

Answer:

<h2>It's an identity</h2>

Step-by-step explanation:

\sin^4x-\sin^2x=\cos^4x-\cos^2x\\\\L_s=\sin^4x-\sin^2x=\sin^2x(\sin^2x-1)=\sin^2x(-\cos^2x)=-\sin^2x\cos^2x\\\\R_s=\cos^4x-\cos^2x=\cos^2x(\cos^2x-1)=\cos^2x(-\sin^2x)=-\sin^2x\cos^2x\\\\L_s=R_s\qquad\bold{CORRECT}

\text{Used:}\\\\\sin^2x+\cos^2x=1\Rightarrow\left\{\begin{array}{ccc}\cos^2x=1-\sin^2x\\\sin^2x=1-\cos^2x\end{array}\right\Rightarrow\left\{\begin{array}{ccc}-\cos^2x=\sin^2x-1\\-\sin^2x=\cos^2x-1\end{array}\right

4 0
3 years ago
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