Math, asked by jiyadoshi90, 4 months ago

If sin 2A= cos 4A, find A, tan3A and sin2 2A +cos2 2A

Answers

Answered by amanraj56
0

Step-by-step explanation:

sin 2A= cos 4A

cos (90-2A)= cos 4A

90-2A= 4A

90= 6A

15 = A

hence A=15

tan 3A

tan 45= 1

sin²2A+cos²2A

sin²30+cos²30

(1/2)²+(√3/2)²

1/4+3/4

4/4

1

#666

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