If = 4, = 3 & = 2 , then the value of 4x2+y2+25z2+4xy−10yz−20zx is (a)1 (b) 2 (c) 3 (d) 4
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If = 4, = 3 & = 2 , then the value of 4x2+y2+25z2+4xy−10yz−20zx is (a)1 (b) 2 (c) 3 (d) 4
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