Answer:
<h2>can u please post question shortly</h2>
Answer:
Positive
Step-by-step explanation:
When you multiply a negative by a negative you get a positive, because the two negative signs are cancelled out.
Formatted Options:
A. sin²A−cos²A
B. sin²A+cos²A
C. cos²A−sin²A
D. cosA−sinA
Answer:
C. cos²A−sin²A
Step-by-step explanation:
From the double angle formulas, we know that:
cos (A + B) = cosAcosB - sinAsinB
So, if B = A, then the above equation becomes;
cos(A + A) = cosAcosA - sinAsinA [i.e replacing B with A]
=>cos(2A) = (cosA)² - (sinA)²
=> cos(2A) = cos²A - sin²A
Therefore,
cos(2A) is equivalent to cos²A - sin²A
Answer:
96 is a composite number. 96 = 1 x 96, 2 x 48, 3 x 32, 4 x 24, 6 x 16, or 8 x 12
Step-by-step explanation:
The Suez Canal in Egypt connects the Mediterranean to the Red Sea. The Panama Canal in Panama connects the Pacific and Atlantic Oceans.
