Wednesday

November 26, 2014

November 26, 2014

Posted by **anonymous** on Thursday, January 7, 2010 at 9:59pm.

1. sin^-1(-1/2)

2. cos^-1[(-root 3)/2]

3. arctan[(root3)/3]

4. cos(arccos2/3)

5. arcsin(sin 2pi)

6. sin(arccos 1)

I got these values as my answers:

1. -pi/6

2. 5pi/6

3. pi/6

4. 2/3

5. 2pi

6. 0

Can someone please tell me if they are right? thank you

- math -
**MathMate**, Thursday, January 7, 2010 at 11:22pmThe answers for inverse trigonometric depends on the range. Most of the time,

function range

asin(x) -π/2 to π/2

acos(x) 0 π

atan(x) -&pi/2 to π/2

Based on the above ranges, here are your answers:

1. -pi/6 correct

2. 5pi/6 correct

3. pi/6 correct

4. 2/3 correct

5. (2pi) 0

6. 0 correct

- math -
**anonymous**, Friday, January 8, 2010 at 1:00pmThank you MathMate.

- math :) -
**MathMate**, Friday, January 8, 2010 at 11:15pmYou're very welcome!

**Answer this Question**

**Related Questions**

math - Evaluate. 1. sin^-1(-1/2) 2. cos^-1[(-root 3)/2] 3. arctan[(root3)/3] 4. ...

Trigonometry - I need help with I just can't seem to get anywhere. this is as ...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...

calculus - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x...

Calc. - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x ln...

math - Eliminate the parameter (What does that mean?) and write a rectangular ...

maths - Please can you help me with this question? Choose the option which is a ...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

tigonometry - expres the following as sums and differences of sines or cosines ...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...