Question

cos10-sin10/cos10+sin10=tan35.prove it.

Answer 1

tan35? sure?

Answer 2

cant get it to equate on my calculator - i get it = to tan 45.5

Answer 3

yes

Answer 4

unless the expression is (cos10-sin10) / (cos10 + sin 10) then this is equal to tan 35

Answer 5

how?

Answer 6

i assumed you meant cos10- (sin10/cos10) + sin10
- its always better to use brackets to make sure theres no ambiguity

Answer 7

the rule is that multiplication and division is done before add and subtract unless there are brackets which are always calculated first

remember BODMAS

Answer 8

which stands for brackets over divide and multiply then add and subtract

Answer 9

anyway tan 35 degree s is correct - must go - bye for now