Question

find signs of cos 400​

Answer 1

Question :-

the sign of cos 400 is

Answer:

Since 400 degrees lies in the first quadrant, that must mean that cos of 400 degrees is positive.

Step-by-step explanation:

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Answer 2

Answer:

0.7 and sign is +ve

Step-by-step explanation:

GIVEN:-

$\cos(400)$

NEED TO FIND:-

• Its value

SOLUTION:-

$\cos(400)$

$= \cos(360 + 40)$

$= \cos(40)$

$= 0.7$