Question

if cos A + cos²A=1, then the value of the expression sin²A+sin^4 is

A)0
B)1
C)1/2
D) 2​

Answer 1

Answer:

Cos A+cos A=1

Sin A+sin 4= 2 is the correct answer

Answer 2

Refer The Attachment ⬆️

$\red{\sf{@MrMonarque}}$

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Hope It Helps You ✌️