Question

how much is √5/8 ? is 5√2/2 the answer?

Answer 1

is it
\[ \sqrt{\frac{5}{8} }\]
?

Answer 2

yes

Answer 3

0.79 =/= 3.5

Answer 4

\(\huge\sqrt\frac{5}{8}=\sqrt\frac{5}{2*4}=\frac{1}{2}\sqrt\frac{5}{2}\)

Answer 5

@Directrix

Answer 6

What is the orignal problem? @Kfsv10

Answer 7

The original trig problem.

Answer 8

? It's solved already

Answer 9

@Directrix the problem is cos = √5/8, and tan <0

Answer 10

The cosine is positve and the tangent is negative so we are in Quad III, downstairs on the right.

Answer 11

Tan x is the ratio of y to x so we need to get sin x.

We are back to the identity:

sin^2x + cos^2x = 1

Answer 12

sin^2x + cos^2x = 1

sin^2x + (√5/8)^2 = 1

@Kfsv10 Next step?

Answer 13

make 8 2√2 and it would look like this √5/2√2 and then 10/2?

Answer 14

@Directrix

Answer 15

b