Explore this simple explanation by a Bartleby expert to learn two methods to find the exact value of sin (3pi/4).

Question 1207211: Can you please help me solve the following trigonometry exact values with working out: sin 2pi/3 cos 3pi/4 tan 5pi/6 sin 7pi/6 cos 5pi/4 tan 4pi/3 sin 5pi/3 cos 7pi/4 tan 11pi/6 I know it is …

Question 800788: Find the terminal point P (x, y) on the unit circle determined by the given value of t. t = 3pi/2 P (x,y)= ( ) Answer by Alan3354 (69443) (Show Source):

pi < x < 3pi/2. in degrees, that means 180 < x < 270. that puts x in the third quadrant. tan (x) in the third quadrant is positive, but x and y in the third quadrant are negative, so tan (x) in the third quadrant is …

Question 1133868: Refer to the graph of y = sin x to find the exact values of x in the interval (−π/2, 3π/2) that satisfy the equation. (Enter your answers as a comma-separated list.) sin x = 0 Answer by Theo …

You can put this solution on YOUR website! How do you determine where an angle falls in a quadrant? How would you find out where angle theta is located and how to find the corresponding angle? If the …

Question 875564: find amplitude,period,frequency,phase shift, and vertical shift. than graph two periods of the functions for y=cos (x-3pi/2)-1 Answer by lwsshak3 (11628) (Show Source):

Question 682705: Use a half-angle formula to find the exact value of sin ( (3pi)/8) Thanks!! Answer by lwsshak3 (11628) (Show Source):

You can put this solution on YOUR website! Use the half-angle formulas to determine the exact value of the given trigonometric expression. tan (3pi/8) *** =√2+1 (ans. a)

Question 1007381: Use an addition or subtraction formula to write the expression as a trigonometric function of one number: cos (3pi/7) cos (2pi/21) + sin (3pi/7) sin (2pi/21) Find A and B where, cos= …