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likoan [24]
3 years ago
13

How do you solve this?

Mathematics
1 answer:
Kitty [74]3 years ago
7 0
1/sin^2 -1 = csc^2 -1 = cot^2

derive formula from formula
sin^2 + cos^2 = 1
divide both sides by sin^2
we got 1 + cot^2 = csc^2
or. csc^2 - 1 = cot^2 ... we use this
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