Question

if cosA +sec A =2, prove that cos ^4A+sec^4 A=2​

Answer 1

$❤️ANSWER❤️$

⭐Kindly refer to the attachment.

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Answer 2

Answer:

$3 - > > \geqslant = |y \times x - \times y. - 3 \times |?| \times \frac{?}{?} |$