Question

Given tan A = .78 find angle A in degrees. Round your answer to the nearest hundredth.

Answer 1

is it 67.43°?

Answer 2

that is not what wolfram gets
http://www.wolframalpha.com/input/?i=arctan%28.78%29

Answer 3

Given cos B = .12 find angle B in radians. Round your answer to the nearest hundredth.

Answer 4

arctan(.78)=.6624

Answer 5

\[\cos^{-1}(.12)\] and a calculator
http://www.wolframalpha.com/input/?i=arccos%28.12%29

Answer 6

wolfram gives answers both in radians (first one) and degrees (second one)

Answer 7

Given sinB = 11/18 find angle B in degrees. Round your answer to the nearest hundredth.

Answer 8

37.67°?

Answer 9

\[\sin ^{-1}\](11/18)= 37.67 degrees

Answer 10

yes 37.67 degrees