Physics, asked by sakeenayadav123, 1 day ago

please explain the value of cosec (-120degree).
complete explaination.

Answers

Answered by ansulsharma

1

Cosec 120 = 2/√3

By Trigonometric Ratios of Complementary angles :

i) cosec(90+A) = secA

ii) sec(90+A) = -cosecA

Now,

cosec120

= cosec(90+30)

= sec30°

= 2/√3

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