Question

Sin 1845 =
Thanks for helping

Answer 1

sin 1845=sin(1800+45)
              =sin(20x90+45)
              =sin 45
              =1/√2 

Answer 2

Answer:

$Sin 1845 = \frac{1}{\sqrt{2} }$

Explanation:

There are four quardent in trigonometry. We know that if the angle is close to the multiple of an even number of 90 degree then the trigonometric function will same and if the angle is close to the multiple of an odd number of 90 degree then the trigonometric function will be the "CO" trigonometric funtion of the fuction.

$Sin 1845\\\\= Sin (1800+45)]\\\\= Sin (20*90 + 45)\\\\= Sin 45\\\\= \frac{1}{\sqrt{2} }$

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