Question

If cos x = sin(20 + x)° and 0° < x < 90°, the value of x is ?

Answer 1

this makes no sence
it says x is between 0 and 90

Answer 2

i know, but its what i copied and pasted on here

Answer 3

maybe because its a equality, it could be just a hint, let me think about it real quick

Answer 4

ok

Answer 5

ohh ok were does cosx = sinx

Answer 6

i don't think there is any value where cos(x) = sin(x) + 20 degree's

Answer 7

ok thanks

Answer 8

https://answers.yahoo.com/question/index?qid=20110221192440AAwPbvy
here something