Math, asked by samishukla117, 4 days ago

cos² A - sin²A = 3/4 find A

Answers

Answered by Rishikishore1186

0

Answer:

3 is the answer

Step-by-step explanation:

Attachments:

Answered by femielsajinu

0

Answer:

A = 45

Step-by-step explanation:

Cos^2A - Sin^2A = 3/4

(1-Sin^A) -Sin^2 A = 3/4

1 - 2Sin^2A 3/4

2Sin^2A = 1 - 3/4

2Sin^2A = 1/4

SinA = 1/2√2

= 1/√2

Sin45 =1/√2

SO, A=45

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