Question

F
tan 0 = 4/5
4/5 Find cos 0​

Answer 1

Answer:

cos 0 = 5

Step-by-step explanation:

$\\ \tan(0) = \frac{4}{5} \\ \tan(0) = \frac{ \sin(0) }{ \cos(0) } \\ therefore \: \frac{ \sin(0) }{ \cos(0) } = \frac{4}{5} \\ \sin(0) = 4 \: \cos(0) = 5$

therefore cos0 = 5

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Answer 2

Answer:

Step-by-step explanation:

tan theta = P/B ( perpendicular/ BASE)

P/B = 4x / 5 x

using Pythagoras therom

(4x) square + ( 5x ) square = 16x square + 25 x square = 41 x square

cos theta = B/ H( base / hypotenous )

cos theta = 4x/41x = 4/41