If tan alpha and tan beta are the roots of equation X square - PX + Q is equal to zero then find cos 2 alpha + beta

Open in App

Solution

Suggest Corrections

Similar questions

Q.
If

tan α, tan β

are the roots of the equation

x^{2} + p x + q = 0 (p \neq 0)

then

{sin}^{2} (α + β) + p sin (α + β) cos (α + β) + q {cos}^{2} (α + β) =

Q. If

tan \frac{α}{2}

and

tan \frac{β}{2}

are the roots of the equation

9 x^{2} - 26 x + 15 = 0

then

cos (α + β)

is equal to?

Q. If

tan α

and

tan β

are the roots of

x^{2} - p x + q = 0

, then find the value of

{sin}^{2} (α + β)

Q. If

tan α, t a n β

are the roots of the equation

x^{2} + p x + q = 0 (p \neq 0)

then

If $t a n α, t a n β$ are the roots of the equation $x^{2}$ + ax + b = 0 then the value of $s i n^{2} (α + β) + a s i n (α + β) c o s (α + β) + b c o s^{2} (α + β) =$

Join BYJU'S Learning Program