3. Let A represent a positive integer. 1 21 what is the value of A? If sin³ (3Ax) dx = - S 1 cos (3Ax) + cos³ (3Ax) + C, 63

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A: For the numerator we will have to use the formula  With a=sinA and b=1

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A: Given query is to find the substitution applied.

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Q: evaluate using the suggested method.

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A: Given,           cosx=45 , 3π2≤x≤2π.

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A: We need the following two identities to produce the required prove:

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A: ∫sin(4t) sin(2t) dt Here use formula sin(A)·sinB =cosa-b-cosa+b2 Here A=4t , B=2t  sin4t·sin2t…

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A: Evaluating each of the options given

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A: let

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Q: Verify the identity. 6 cos(sin-1 x) = / 36 – 36x2 Let 0 = sin-1 x = sin 0 = x = X. Thus, 6 cos(sin-1…

A: use trigonometric identity  to verify it.

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A: we have to prove the identity ,  a) sin3π2+x-sin3π2-x=0b) sin(A+B)+sin(A-B)=2sinAcosB

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Q: Find a correct to 2 decimal places. NOTE: The triangle is NOT drawn to scale. X = Y 33° 98 38°

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