How do you find the value of $csc (- 210)$ $csc (-210)$ ?

Question

How do you find the value of $csc (- 210)$ $csc (-210)$ ?

1 Answer

Impact of this question

5430 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-10-16T20:46:50

$2$ $2$

Explanation:

$csc (- 210^{\circ}) = \frac{1}{sin (- 210^{\circ})} = - \frac{1}{sin (210^{\circ})}$ $csc(-210^@)=1/(sin(-210^@))=-1/sin(210^@)$ (By trig ratios and identities)

$= - \frac{1}{sin (180^{\circ} + 30^{\circ})}$ $=-1/(sin(180^@+30^@)$

$= - \frac{1}{- {sin 30}^{\circ}}$ $=-1/(-sin30^@)$ (By the $180^{\circ}$ $180^@$ rule)

$= 2$ $=2$ (By standard triangle values)

Science

Math

Humanities

... and beyond

How do you find the value of $csc (- 210)$ $csc (-210)$ ?

1 Answer

Explanation:

Related questions

Impact of this question

Science

Math

Humanities

... and beyond

How do you find the value of csc (-210)csc(−210)csc (-210)?

1 Answer

Explanation:

Related questions

Impact of this question

How do you find the value of $csc (- 210)$ $csc (-210)$ ?