If `0 lt alpha lt pi/2` then show that `tanalpha+cotgtsinalpha+cosalpha`

If 0 lt x lt pi /2 then

If 0 lt x lt pi/2 then

If 0 lt x lt pi/2 then

If 0 lt alpha lt pi/6 , then the value of (alpha cosec alpha ) is

If 0 lt alpha lt (pi)/(3) , then prove that alpha (sec alpha) lt (2pi)/(3).

If 0 lt x lt pi/2 show that cosxgt1- x^2/2

If 0ltalphaltbetaltpi/2 show that alpha-sin alpha lt beta-sinbeta

if 7 sin alpha = 24 cos alpha 0 lt alpha lt pi/2 . Then the value of 14 tan alpha - 75 cos alpha-7 sec alpha is

If 7sinalpha=24cosalpha,0ltalphalt(pi)/(2) then the value of 14tanalpha-75cosalpha-7secalpha is equal to