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Q. 5. When $a=0,b=-1,$ find the value of the given expressions:

(ii) $2a^{2}+b^{2}+1$

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$\\2a^2 + b^2 + 1 \\= 2 \times 0^2 + ( -1 )2 + 1 \\= 0 + 1 + 1 \\= 2$

When a = 0 and b = -1 the value of the given expression 2a² + b² + 1 = 2

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