Question

If cosine 70 degrees= 0.342 give another angle whose cosine is 0.342??

Answer 1

the coterminal angle...just add 360 to 70

Answer 2

i think -70 also qualifies

Answer 3

yupp cos(-70) qualifies :D

Answer 4

What about cos x= -cos(180-x)

Answer 5

I think think you can use

cos(x) = a then sin(90 - x) = a

Answer 6

my does my text give the answer 260??

Answer 7

well cos is positive in the 1st and 4th quadrant...

4th quadrant angles are

\[360 - \theta\]

so

360 - 70 = 290

might me a textbook typo

Answer 8

ya its 290