1) If cos A =4/5, then the value of tan A is
If sin A =1/2, then the value of cot A is
The value of the expression [cosec (75 + ?) – sec(15 - ?) – tan(55 + ?) + cot(35 - ?)] is
If cos( A + B)=0 then sin (A-B ) is equal to
The value of tan 10 tan 20tan 30….. tan890 is
If cos 9A =sin A and 9A < 900, then the value of tan 5A is
If ?ABC is right angled at C, then the value of cos(A+ B) is
7) If sin A + sin 2A =1, then the value of cos 2A +cos 4A is
Given that sin A = ½ and cos B = 1/2 , then the value of (A + B) is
If 4 tan A =3 then the value of (4 sin A - cos A)/(4 sin A+cos A) is