21. If x2 + y? =1 and xy = 2 , find (x + y)'.

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Q: If |a| <1, the indefinite integral zp- 1+z14 can be written as a power series , Cna14n 13 + C, m31 w...

A: The complete solution is in given below

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Q: Let A be an m × n matrix. Prove that if the reduced echelon form of A possesses precisely one pivot,...

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Q: (a) Create a graph with six vertices of degrees 2, 2, 2, 3, 4 and 5. Construct the matrix of the gra...

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Q: In order to prove A ABENA ACD,whih

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Q: Use De Moivre's Theorem to find the identity of the following: a. cos 80 b. sin 90 c. cos 100

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Q: (vi) Triangle with vertices (0,0), (1,2), ( 1, 0) about x = a,

A: As per our guidelines, we are supposed to solve only first question. Kindly repost other question as...

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Q: of z = 1, the fL pansion of the z)2 + . 00

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Q: How many four-digit numbers can be formed from the numbers 1, 3, 4, 6, 8, and 9 if repetition of dig...

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Q: Use Gaussian elimination in matrix form to solve the system. I+ 2y – 4z = 5 2x +y - 6z=8 4x - y – 12...

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