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If a is a root of 4x²+2x-1=0, then prove the other root is 2a2-2a. If a is a root of 4x²+2x-1=0, then prove the other root is 2a2-2a.
a is the root of above equation say b is another root.so 4a2+2a-1=0a+b =-1/2so put a=(-1/2-b)4a2+2(-1/2-b)-1=04a2-1-2b-1=04a2-2b=22a2-b=12a2-1=b
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