" i) prove that cosecio" "-sqrt(3)sec10'=4

Prove that sqrt3 "cosec" 20^@-sec20^@=4

Prove that sin20(4+sec20)=sqrt(3)

Evaluate : cosec10^@-sqrt3sec10^@

If lim_(xrarr2) (2x^2-4f(x))/(x-2) =m, where f(2)=2, f'(2)=1, then cosec 10^@-sqrt(3)sec10^@ is (A) 3m (B) 2m (C) m (D) none of these

prove that sqrt3cosec40+sec40 =4

"cosec" 10^(@) - sqrt(3) " sec" 10^(@) =

If tan^(-1)x=A, then prove that sec A=sqrt(1+x^(2))

Find the value of cos ec10^(@)-sqrt(3)sec10^(@)(i)4(ii)2(ii)0(iv)-1

Find the value of cosec 10^(@) - sqrt(3) sec 10^(@) .

cos ec10 ^ (@) - sqrt (3) sec10 ^ (@) =