1.

(sin​​​​4​​​A - cos​​​​4​​​A) (sin⁴A+cos⁴A) = (sin²A-cos²A)(sin²A+cos²A) How?

Answer»

(sin​​​​4​​​A - cos​​​​4​​​A) (sin⁴A+cos⁴A) = (sin²A-cos²A)(sin²A+cos²A)

How?



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