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schepotkina [342]

3 years ago

7

suppose sin(A)=2/5. Use the trig identity sin^2(A)+cos^2(A)=1 to find cos(A) in quadrant 1. Round to ten-thousandth.

1 answer:

shutvik [7]3 years ago

3 0

Answer:

about0.9165

Step-by-step explanation:

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