cos80°÷sin10°+cos59°×cosec31°
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Answered by
10
Answer:
2
Step-by-step explanation:
cos80=sin(90-80)=sin10
cos59=sin(90-59)=sin31
cos80/sin10+cos59*cosec31=sin10/sin10+sin31*cosec31
=1+1=2
Answered by
6
Step-by-step explanation:
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