Math, asked by kushaldhruvi245, 1 year ago

cos⁴A-sin⁴A is equal to

Answers

Answered by chittirnpk

2

Answer:

2COS^2A

Step-by-step explanation:

ABOVE IS THE ANSWER

AND ANOTHER FORM CAN BE

2COS2A-1

Answered by warrior24

4

Answer:

(cosA + sinA) (cosA-sinA)

Step-by-step explanation:

(cos^2A)^2-(sin^2A)^2

(cos^2A+sin^2A) (cos^2A-sin^2A)

1 × (cosA + sinA) (cosA-sinA)

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