3 years ago

PLEASE HELP I ONLY HAVE AN HOUR

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

Answer:

A. I can't quite see the question, but I'm pretty sure it's A

Step-by-step explanation:

Sin(A) = 1/3

Sin^2(A) + Cos^2(A) = 1

(1/3)^2 + cos^2(A) = 1

1/9 + cos^2(A) = 1

cos^2(A) = 1 - 1/9

cos^2(A) = 8/9

cos(A) = √(8/9)

√8 = √(2 * 2 * 2) = 2√2

√9 = 3

cos(A) = 2√2/3

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3 years ago

PLEASE HELP I ONLY HAVE AN HOUR ​

PLEASE HELP I ONLY HAVE AN HOUR