Question

How remember TRIGONOMETRIC RATIOS easily?

Answer 1

Answer:

Hey there! Assuming you are asking the basic ones(of grade 10 CBSE level),

you can remember OSHACHOTA

Explanation:

• Consider first 3 letters OSH

S stands for sine: opposite side by hypotenuse side of the angle θ = sin θ

• Next see ACH

C stands for cosine: Adjacent side by hypotenuse side of θ = cos θ

• Finally see OTA

T stands for tangent: Opposite side by adjacent side of θ = tan θ

• For sec θ,cosec θ and cot θ, we know that

secθ = 1/cosθ,

cosecθ = 1/sinθ,

cot θ = 1/tanθ

Check out the image for reference!!

Cheers!!!