[" 6."4fe" sin "A=(3)/(5)vec q" all "tan B=(1)/(2)" wafor "],[(pi)/(2)

If sin A=(3)/(5), tan B=(1)/(2) and (pi)/(2) lt A lt pi and pi lt B lt 3(pi)/(2), then 8 tan A+sqrt(5) sec B=

If A and B are acute angles,sin A=(1)/(5sqrt(2)) and tan B=(1)/(3), then A+2B=(i)(pi)/(2)(ii)(pi)/(3)(iii)(pi)/(4)(iv)(pi)/(6)

Prove that (i) " tan"^(2) .(pi)/(3) + 2cos^(2) .(pi)/(4)+ 3 sec^(2).(pi)/(6)+ 4 cos^(2).(pi)/(2)=8 (ii) " sin ".(pi)/(6) " cos 0 + sin ".(pi)/(4) " cos " .(pi)(4) + " sin " .(pi)/(3) "cos " .(pi)/(6) =(7)/(4) (iii) " 4sin " (pi)/(6) " sin"^(2) (pi)/(3) + 3 " cos " .(pi)/(3) " tan ".(pi)/(4) = " cosec"^(2).(pi)/(2)=4

"tan"^(2)(pi)/(4) "sin"(pi)/(3) "tan"(pi)/(6) "tan"^(2)(pi)/(3) =

if sin A=-(5)/(13),pi<=A<=(3 pi)/(2) and cos B=(3)/(5),(3 pi)/(2)<=B<=2 pi then find tan(A+B)

If sin A : sin B : sin C = 3: 4: 5 then tan ""(A)/(2) : tan ""(B)/(2) : tan "" (C ) /(2) =

Prove that : "sin"(pi)/(3) "tan"(pi)/(6) +"sin"(pi)/(2) "cos"(pi)/(3) =2 "sin"^(2)(pi)/(4) .

Which of the following is not a rational number. a. sin (tan^(-1) 3 + tan^(-1).(1)/(3)) b. cos ((pi)/(2) - sin^(-1).(3)/(4))

The value of (1)/(sqrt(2))"sin"(pi)/(6)"cos"(pi)/(4)-"cot"(pi)/(3)"sec"(pi)/(6)+(5"tan"(pi)/(4))/("12sin"(pi)/(2)) is equal to