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Q: 18) A) C) COS A 3534 A B) D) 4 4 3

A: The given figure

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A: Given,           A unit circle is made up of n wedges equivalent to the inner wedge in the figure.…

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A:

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A:

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A: We first find the dot product of the vectors Then we find the magnitude of the vectors

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Q: 3T/4 18) 3 sec 0 tan 0 de

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Q: When integrating by trigonometric substitution | V4x² +25 dx becomes a) jsc 25 sec? O tan O dO 2…

A: Solve

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A: Step 1:Step 2: Step 3: Step 4: