[" Encimal to "y^(2)=4ax" at "P" meets the curve again at "Q" and if "PQ" and the norma "],[" ectively,with the "X" -axis then value of "|tan alpha(tan alpha+tan beta)|" is "],[[" (B) "2," (C) "3," 3"," (D) "]]

If the normals to the parabola y^(2)=4ax at P meets the curve again at Q and if PQ and the normal at Q make angle alpha and beta respectively,with the x-axis,then tan alpha(tan alpha+tan beta) has the value equal to 0 (b) -2( c) -(1)/(2)(d)-1

If 2tan alpha=3tan beta then tan(alpha-beta)=

If tan alpha = 7/5, tan beta=5/7 " then find the values of " tan (alpha + beta) " and " cot (alpha - beta)

Prove that (tan alpha+tan beta)/(cot alpha+cot beta)=tan alpha tan beta

If 3sin alpha = sin beta!=0 , then the value of |(tan((alpha + beta)/2))/(tan((alpha-beta)/2))|

If 3sin alpha=5sin beta then the value of tan((alpha+beta)/(2))tan((alpha-beta)/(2))

If tan ( alpha-beta) = (sin 2 beta)/(5-cos 2 beta),"find the value of " tan alpha : tan beta.

If tan alpha = 1/5, tan beta =(1)/(239), then the value of tan (4 alpha -beta) is

If tan alpha = 1/5, tan beta =(1)/(239), then the value of tan (4 alpha -beta) is