Use the half-angle formulas to evaluate the given function.sin 
A. 0.9808
B. -0.9239
C. 0.3827
D. 0.5412
Answer: C
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Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.a = 6, c = 5, B = 90°
A. b = 8.8, A = 50°, C = 40° B. b = 6.8, A = 40°, C = 50° C. b = 7.8, A = 40°, C = 50° D. b = 7.8, A = 50°, C = 40°
Solve the problem.Find the length of a rectangular lot with a perimeter of 92 m if the length is 6 m more than the width.
A. 20 m B. 26 m C. 52 m D. 46 m
Compute each expression and compare.42 + 12; (4 + 1)2
A. 17; 25; square of sum is greater than sum of squares B. 10; 25; square of sum is greater than sum of squares C. 10; 10; both are equal D. 17; 10; sum of squares is greater than square of sum
Given f (x, y) = cos (e2x+ y ), find ?2f / ?x2
What will be an ideal response?