Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.cos 80° sec 80°

A. 1
B. 0
C. -1
D. 80


Answer: A

Mathematics

You might also like to view...

Find the x- and y-intercepts. If no x-intercepts exist, state so. Round to two decimal places if necessary.f(x) = -x2 + 36

A. x-intercepts (6, 0) and (-6, 0); y-intercept (0, 36) B. No x-intercept; y-intercept (0, 6) C. x-intercepts (0, 6) and (0, -6); y-intercept (0, 0) D. x-intercept (6, 0); y-intercept (0, 36)

Mathematics

The coordinates of the center of a circle and a point on the circle are given. Find the radius of the circle.Center: (5, 0), point on the circle: (5, -3)

A. 0 B. -3 C. 9 D. 3

Mathematics

Provide an appropriate response. Find tan A to the nearest ten-thousandth if a = 14.5, b = 7.8, and c = 16.5. 

A. 1.8590 B. 1.1379 C. 0.5379 D. 1.8591

Mathematics

Graph the line through the given point with the given slope.(8, 0), m = - 

A.

B.

C.

D.

Mathematics