Question

 If 3tanӨ=4, then cosӨ is equal to



(a) 1/5

(b)1/4

(c)1/6

(d)3/5​

Answer 1

Charas ganja mere ko pyaara

Phuku mai subha saam, raat ho ya din

mummy bole mat kar, papa bole mat kar

Aunty bole mat kar, mat kar mat kar

Pata hai maine kya bola

Charas ganja mere ko pyaara

*Guess the song name*

Answer 2

Answer: (d) 3/5

3tanx = 4

=> tanx = 4/3

we know that, tanx = perpendicular/base

therefore,

perpendicular, p = 4 units

and base, b = 3 units

now, using Pythagoras theorem, we have,

h = √(p² + b²) = √4²+3² = √ 16+9 =√25 = 5

so, hypotenuse, h = 5 units.

cosx = base/ hypotenuse

=> cosx = 3/5