9. Tan -30 degrees 11. tan -960 degrees 13. cot -630 degrees 15. tan 90 degrees

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A: Since you have posted multiple questions i can do first question as per our company guidelines pleas...

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Q: B. 24 12 17 6. 16 14 38 13 C. How many elements are in AnB? 78 48 21 92

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A: I am attaching image so that you understand each and every step.  

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A: Since you have posted multiple questions i can do first question as per our company guidelines pleas...

Q: csc (In x) cot(ln x) dx ¤[1+csc*(ln æ)]° CSC

A:

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A: Solved below

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A: I am attaching image so that you understand each and every step.

Q: 1) cos 945° 3) tan 870° 5) sin 90°

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Q: Problem 1. Evaluate the following integrals x + 4 (a) S ; d.x x2 + 2x + 5

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Q: 8.) f(x) = v5x* – 12

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Q: convert -240* to radians a -5n/4 b -5n/6 c -4n/3 d -7n/6

A: To convert -240° into radians.

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A: We can use exponential decay function to solve the problem

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A: Since you have posted multiple questions i can do first question as per our company guidelines pleas...

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