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# how to solve this

the area of a cirlce with angle 45 degree is 5 square feet. Find the radius of the circle. if your computation involves pi, use pi=3.14159. round 2 decimal places.

# how to solve this?

find the lenght of an arc with angle 120 degress in a circle with radius 3 meters. Round answer to 2 decimal places. If you need something related to pi, use pi=3.14159 or its exact  value....

# how to work this

find the length of an arc with angle 120 degress in a circle with radius 12 meters. round answer to 2 decimal places.

# i need help with this

the area of a sector of a circle with angle 45 degress is 4 square feet. find the radius of the circle. if your computation involves pi, use pi=3.14159. round to 2 decimal places.

# What is the value of arcsin(3/5) & arcsin(1/sqrt5) in terms of pi radian ?

With reference to Inverse Trigonometric Functions, please help me in details calculation/description for finding out the value of arcsin(3/5 & arcsin(1/sqrt5) in terms of pi radians.

# Find the value of ALL the other five trigonometric functions, given tanx= 4/11, secx<0.

Thanks for the help! If you could please show all your work? Thanks again!

# Write sin(sin^-1x-cos^-1x as an algrebraic expression in x.

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

# Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0

This is for my trig class, thanks for the help!

# Find the value of the other five trigonometric functions, given tanx= 4/11, secx<0.

This is for my trig class, thanks for the help!

# Find the value of the other five trigonometric functions, given tanx= 4/11, secx<0.

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

# Find all solutions in the interval [0,2pi): tan^2x+(sqrt3 - 1)tanx-sqrt3 = 0

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

# Find all solutions in the interval [0,2pi): sin2x=cosx

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

# Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

# Use the sum or difference formulas to determine: A. sin105 degrees and B. tan15 degrees

This is for my trig class, thanks for the help!

# Simplify (sin42degrees)cos38degrees-(cos42degrees)sin38degrees

This is for my trig class, thanks for the help!

# Verify tan(x+pi/4)= 1+tanx/1-tanx

This is for my trig class, thanks for the help!

# Use the double angle formulas to determine: A. cos120degrees and B. tan300degrees

This is for my trig class, thanks for the help!

# Verify: cosusinv=1/2[sin(u+v)-sin(u-v)

This is for my trig class, thanks for the help!