SOLUTION: The exact value of 6cos(-61pi/6)-2sin(13pi/4) is... A. 3squaroot(3)+squaroot(2) B. -3+squaroot(2) C. -3-squaroot(2) D. 3squaroot(3)-squaroot(2)

Question 545976: The exact value of 6cos(-61pi/6)-2sin(13pi/4) is...
A. 3squaroot(3)+squaroot(2)
B. -3+squaroot(2)
C. -3-squaroot(2)
D. 3squaroot(3)-squaroot(2)
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
The exact value of 6cos(-61pi/6)-2sin(13pi/4) is...
A. 3squaroot(3)+squaroot(2)
B. -3+squaroot(2)
C. -3-squaroot(2)
D. 3squaroot(3)-squaroot(2)
**
For(-61π/6), use reference angle(-π/6) in quadrant IV where cos>0
6cos(-61π/6)=6cos(-π/6)=6√3/2=3√3
..
For(13π/4), use reference angle(5π/4) in quadrant III where sin<0
2sin(13pi/4)=2sin(5π/4)=2√2/2=√2
..
6cos(-61pi/6)-2sin(13pi/4)=3√3-√2 (ans. D)
RELATED QUESTIONS
x-3(squaroot)2=8 (answered by MathLover1)

the squaroot of... (answered by tommyt3rd)

-2^3 * 3^2 - (2^3)^2 - 2^5/2^3 - squaroot 4^2 + 3^2 (answered by CubeyThePenguin)

find the derivatives of the following function using appropriate methods a)y=squaroot of (answered by ewatrrr)

2-squareroot of -5 over 2+2 squaroot of... (answered by longjonsilver)

SHOW THAT: A) TOTAL SURFACE OF A CUBE TWICE THE SQUARE OF ITS DIAGONAL. B) VOLUME OF (answered by robertb)

tan (theta) squaroot 7 value... (answered by Alan3354)

(1 pt) Solve the following equation in the interval [0, 2pi ]. Note: Give the answer as... (answered by Alan3354)

what is the domain of function y=squaroot of x2-9 show answer in two different ways a.... (answered by fractalier)