We know that
sin²x+cos²x=1
so
clear cos x
cos x=(+/-)√[1-sin²x]
in this problem
<span>Angle 0 is in quadrant 1 -----> cos o and sin o are positive
</span>sin o=2/5
cos x=√[1-(2/5)²]----> cos o=√[1-4/25]----> cos o=√[21/25]---> cos o=√21/5
the answer is
cos o=√21/5
Answer:
Manual Override??
Step-by-step explanation: I'm prop wrong
The answer is A) Right because the lengths 3 cm and 3 cm are obviously the same so it will form a right angle
Answer:
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Step-by-step explanation:
Answer: The actual distance is 68 miles.
Step-by-step explanation: