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If cos 4 x = a(0) + a(1) cos ^(2) x + a...

If ` cos 4 x = a_(0) + a_(1) cos ^(2) x + a_(2) cos ^(4) x ` is true for all values of `x in R` . Then the value of `5 a_(0) + a_(1) + a_(2)` is _____

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