Question

What is sin 45?

Answer 1

are you familiar wit this triangle ?

Answer 2

yes

Answer 3

Sin (45) = Opposite / Hypotenuse

opposite = a
hypotenuse = a √2

Answer 4

can you solve for sin 45 or need more help ?

Answer 5

oh ok i got it thanks!

Answer 6

No... please show what you do, you will see why ...

Answer 7

3/2?

Answer 8

Don't go yet, please do it in here, show me your work.

Answer 9

Sin (45) = Opposite / Hypotenuse = a / (a √2)

right ?

Answer 10

1/2

Answer 11

\(\Huge\color{blue}{ \bf \frac{a}{a\sqrt{2}}= \frac{1}{\sqrt{2}}= \frac{\sqrt{2}}{2} }\)

Answer 12

wouldnt it be 1/√2

Answer 13

yes, that is my second step... but radical in the denominator is invalid.