Question

find the value of :-
cosec 780°.​

Answer 1

Answer:

cosec (4π + 60) ...(4×180=720)

that is equal to cosec 60°that is equal to 2 by root 3 (2/√3)

Answer 2

Answer:

cosec780

=cosec (360×2+60)

=cosec (90×8+60)

=cosec (60)

=cosec 60

this equals to 3(2 root 3).

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Step-by-step explanation:

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