A^2 - b^2 = (a - b)( a +b);
<span>cos^4x-sin^4x =( cos^2x + sin^2x )( cos^2x - sin^2x) = 1* cos2x = co2x.</span>
Answer:
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When you cut a cone parallel to the base , you will see a circle
Answer:
Radius: 10.5
Circumeference: 65.97
Area: 346.36
Step-by-step explanation:
Answer:
aida's work is the correct answer