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The value of the expression E = cos ^4 (x)- K^2 Cos^2 (2x) + sin^4 (x) which is independent of x is 1/t then t equals

The value of the expression E = cos ^4 (x)- K^2 Cos^2 (2x) + sin^4 (x) which is independent of x is 1/t then t equals
 
 

Grade:11

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