Question

The value of cosec (-750degee) is

Answer 1

-2

Answer 2

degree

Answer 3

it is same as cosec 30

Answer 4

how you got that ? can u explain?

Answer 5

cosec (-750)
=-cosec750
=-(cosec(360+390))
=-cosec(390)
=-cosec(360+30)=-cosec30

Answer 6

which is -2

Answer 7

i hope u have understood

Answer 8

no i couldn't

Answer 9

cosec(360+x) is cosec x you know this?

Answer 10

and cosec(-x)=-cosecx

Answer 11

you know these formulae right?

Answer 12

yes

Answer 13

ya so thats what seikumar has used in his steps..
you couldnt get it?

Answer 14

in 4th step?

Answer 15

cosec (-750)
=-cosec750 (formula 2)
=-(cosec(360+390))
=-cosec(390) (formula 1)
=-cosec(360+30)
=-cosec30 (formula 1)

Answer 16

you get it?

Answer 17

ya

Answer 18

kk great!
keep it up!

Answer 19

thanks

Answer 20

ur welcome :)