What are the sine cosine and tangent of theta=7pi/4 radians
2 answers:
Answer:


.
Step-by-step explanation:
We have to find the value of sine cosine and tangent of
radians.

So,
lies in 4th quadrant. Sine and tangent are negative in 4th quadrant.
The value of sinθ is




The value of cosθ is




The value of tanθ is




Therefore
,
and
.
Answer:
see explanation
Step-by-step explanation:
is in the fourth quadrant
Where sin and tan are < 0 , cos > 0
The related acute angle is 2π -
= 
Hence
sin([
) = - sin(
) = -
= - 
cos(
) = cos(
) = 
tan(
= - tan(
= - 1
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