Next Using a double-angle or half-angle formula to simplify the given expressions. (a) If 2 sin(37°)cos(37°) = sin(A°) then A = degrees %3D (b) If cos (2x) – sin (2r) = cos(B°) then %3D B = %3D

Q: Find tan θ if sec θ = √5 and sin θ < 0.

A: As value of cosθ and sinθ revolves around +1 to -1 , they take different values depending on the…

Q: 1 Find two equations (using cosine and sine) for the following: A mass on the end of a spring is at…

A: (a) Given that, The mass is hanging 80 cm from the ground, and it pulled down 60 cm and released at…

Q: If sinA=4/5 and cosB= -5/13, where A belongs to QI and B belongs to QIII, then find sin(A+B). How do…

A: Given that Where A in quadrant 1 and B in quadrant III

Q: find tan(a-B) and sin (2B) given that tan a= -4/7, a is in quadrant 4, cosB = -3/5, B is in…

A:

Q: If sin(a)=0.2sin and cos(b)=0.75 determine the values of the following expressions (round to four…

A: Given data: The given value of the sine function is sin(a)=0.2. The given value of the cosine…

Q: If cos(a) = 1/3, sin (b) 2/3, tan(a) is negative, and tan(b) is positive, then what is cos(a + b)?…

A: cosa=13 ,sinb=23

Q: In the figure below, a pole has two wires attached to it, one on each side, forming t right…

A: Given, Two right triangle with same height p. where a and b are length of the wire A and B…

Q: K. Use an addition formula to find the exact value of cos 15° cos 75° + sin 15° sin 75°

A: Addition formula: cos(A-B)=cosA cosB+sinA sinB

Q: George drew a perpendicular line from ∠C to the opposite side in the diagram below.   He then did…

A: George drew a perpendicular line from ∠C to the opposite side in the diagram. He found out that…