Question 64004This question is from textbook algebra 2
: find the exact values of six trignometric functions of 0 if the terninal side of 0 in standard position contains the points (-5,-4)
find the exact value of: sin 405.
find the exact value of: sin60-cos60
This question is from textbook algebra 2
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! find the exact values of six trignometric functions of 0 if the terninal side of 0 in standard position contains the points (-5,-4)
Plot the point (-5,-4) on an xy coordinate system.
Find the distance from the origin:
d=sqrt(4^2+5^2)= sqrt41
Then:
sin(theta)=y/d=-4/sqrt41
cos (theta)=x/d =-5/sqrt41
tan (theta)=y/x=4/5
The csc, sec, and cot, are the inverse of the sin, cos, tan.
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find the exact value of: sin 405.
sin(405)= sin(360+45)=sin45= (sqrt2)/2
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find the exact value of: sin60-cos60
sin60 = sqrt3/2
cos60=1/2
sin60-cos60 = (1/2)-(sqrt3/2)=(1-sqrt3)/2
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Cheers,
Stan H.
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