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Q: Prove the identity sin(90°x) + sin(90° - x) = 2 cos x We begin on the left side of the equation by u...

A: Given,

Q: see attached

A: Click to see the answer

Q: A pipe has a 35 degree bend that is 3-1/4 inches long

A: From the given figure,

Q: see attachment

A: Left hand side of equation is (1-sinx)(1+sinx)

Q: cos 90 degrees + 3 sin 270 degrees

A: From unit circle we find cos 90 and sin 270 cos 90 degree= 0 and sin 270 degree = -1

Q: Find the approximate value of s, to four decimal places, in the interval [0, pi/2] that makes the st...

A: Given: -

Q: Multiply the numerator and denominator of the fraction by the conjugate of the denominator, and then...

A: Multiply the numerator and denominator of the fraction by the conjugate of the denominator, and then...

Q: A bicycle with a 26-inch wheel (diameter) travels a distance of 200 feet. How many revolutions does ...

A: Given, A bicycle with a 26-inch wheel (diameter) travels a distance of 200 feet.We know tha...

Q: The question says: "Find sin(x/2), cos(x/2), and tan(x/2) from the given information: tanx=1, 0degre...

A: tan x= 1so x=45 degrees. cos x= cos 45 degree= sqrt(2)/2