(a) Find S(tan x)dx (b) Evaluate i sin 3x cos 3x dx d (c) Find (2x sin 2x + cos 2x) and hence evaluate (x cos 2x)dx

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Q: 7) 61 1

A: Use Pythagoras thereon to find the length of an unknown side in a right angle triangle.

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A: It's  just multiplication,

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A: We have compute 2 times 54 that 2×54. Hence, 2×54=108

Q: Hello thank you for the response to the first question, could you also answer question 2?  Thank…

A: 2. The given integral is ∫14x2+4x+10dx We have to find the solution of the integral.

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A: Use trigonometric ratio

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A: follow next step

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Q: 4. y + 10.5 = -9.4

A: Given that,                 y+10.5 = -9.4⇒y = -9.4-10.5 ⇒y=-19.9

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A: