Home
Class 11
MATHS
Prove the following: sin18^@=(frac(sqrt5...

Prove the following:` sin18^@=(frac(sqrt5-1)(4))`

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove the following: cos36^@=(frac(sqrt5+1)(4))

Prove the following: sin36^ °=(frac(sqrt10-2sqrt5)(4))

Prove the following: sin^-1(frac{1}{sqrt2})-3sin^-1(frac{sqrt3}{2}) = frac{-3pi}{4}

Prove the following: (frac(sec2A-1)(sec4A-1))=frac(tanA)(tan4A)

Prove the following: sin^-1(frac{8}{17})+sin^-1(frac{3}{5}) = sin^-1(frac{77}{85})

Prove the following: sin^-1(frac{12}{13})+cos^-1(frac{4}{5})+tan^-1(frac{63}{16}) = pi

Prove the following: sin^-1(frac{-1}{2})+cos^-1(frac{-sqrt3}{2}) = cos^-1(frac{-1}{2})

Prove the following: sin^-1(frac{3}{5})+cos^-1(frac{12}{13}) = sin^-1(frac{56}{65})

Prove the following: cos^-1x = tan^-1(frac{sqrt(1-x^2)}[x}) , if x > 0 .

Find the principal values of the following: sin^-1(frac{1}{sqrt2})