Math, asked by parnikadesale, 3 months ago

pls give me the write ans​

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Answered by Anonymous
4

Answer:

Q17) \: (i) \:  - 2xy \\ Q18) \: 8x {}^{2} y \\ Q19) \: (i) \: 1 \\ (ii) \: 1 \\ Q20) \: 3 \times 10 {}^{4}

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