Question

cosec (-20π/3) then its value
​

Answer 1

Hey MATE!!!

20π/3 => 20*180/3 => 20*60 =>1200°

-cosec(1200)

=> -cosec(3*360 + 120)

=> -cosec(120)

=> -cosec(180-60)

=> -cosec(60)

=>$<strong><em> </em></strong>\frac<strong><em> </em></strong>{<strong><em>-</em></strong><strong><em>2</em></strong>}{\sqrt<strong><em>3</em></strong>}$

Hope it helps

HAKUNA MATATA :))

Answer 2

Answer:

Step-by-step explanation:

cosec(-20π/3)

cosec 20π/3

cosec(7π-π/3)

cosec π/3

2