SOLUTION: please help me these problems
1) sin π/2=cos
2π
non of these
π
π /2
3π/3
2) sin π /6=cos
π/3
non of these
π/4
π/6
Algebra.Com
Question 891837: please help me these problems
1) sin π/2=cos
2π
non of these
π
π /2
3π/3
2) sin π /6=cos
π/3
non of these
π/4
π/6
π/2
3) cos π/2=sin
π/4
non of these
π/2
π
3π/3
4)sin π/4=cos
non of these
π/2
π/3
π/6
π/4
thank you
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
please help me these problems
1) sin π/2=cos
2π
non of these
π
π /2
3π/3
--------------
sin(pi/2) = sin(90 deg) = 1
Find the angle whose cosine = 1 (called arccos(1), acos(1), invcos(1) )
In degs, it's 0, 180, 360, etc
In radians, it's 0, pi, 2pi, etc
=========================
Do the others the same way.
RELATED QUESTIONS
Which angle corresponds to the point (1, 0) on the Unit Circle?
π
2π... (answered by KMST)
Evaluate
a) sin^2(π/4) + cos^2(π/4)
b) sin^2(π/6) + cos^2(π/6)
c)... (answered by lwsshak3)
Please review my work for trigonometry THANKS?
Find the exact values of each of the five (answered by MathLover1)
Evaluate
a) sin^2(π/4) + cos^2(π/4)
b) sin^2(π/6) + cos^2(π/6)
c)... (answered by lwsshak3)
Is this right? please check exact value of tan(5π/3)sec(-5π/6) and other?... (answered by Alan3354)
Evaluate: sin^2 7π/6 + cos^2 11π/6 - tan^3 3π/4
(answered by Alan3354)
Evaluate: sin π/2 - cos 3π/4 - tan π/6... (answered by stanbon)
Which angle corresponds to the point (−√2/2,−√2/2) on the Unit... (answered by josgarithmetic)
solve cos (2x) = sin... (answered by lwsshak3)