[" Question "9.],[" If "sec A=x+1/4x," prove that "sec A+],[tan A=2x" or "1/2x]

If 4xsec A =1+4x^2 , prove that, sec A +tan A=2xor,1/(2x).

if sec A=x+(1)/(4x) then prove that sec A+tan A=2x,(1)/(2x)

If sec theta=x+(1)/(4x), prove that :sec theta+tan theta=2x or ,(1)/(2x)

If sec theta=x+(1)/(4x), then prove that sec theta+tan theta=2x or (1)/(2x)

If sec?+tan?=x, prove that sin?=x2-1

If sec A = x+(1)/(4x) prove that: sec A + tan A = 2x or (1)/(2x) (b) If "tan" theta = (p)/(q) ,show that : (p sin theta - q costheta)/(p"sin"theta+qcostheta)=( p^(2) - q^(2))/(p^(2)+q^(2))

If sec x=x+(1)/(4x) then sec x+tan x

sec ^(2) 2x =1-tan 2x

sec ^(2) 2x =1-tan 2x

Prove that sec (tan^-1( x/2)) = sqrt(4+x^2)/2