" 12.If "tan(3x+30^(@))=1" ,then find the of "x" ."

If tan(3x+30^(@))=1 then find the value of x

If tan(3x-15^(@))=1 then find the value of x.

If tan1^(@)tan2^(@)tan3^(@)tan4^(@). . .tan89^(@)=x^(2)-8 , then find the value of x.

If tan1^(@)tan2^(@)tan3^(@)tan4^(@). . .tan89^(@)=x^(2)-8 , then find the value of x.

If x tan 30^@ + y cot 60^@ = 0,2x-y tan 45^@ = 1 , then find the value of x and y.

If tan^(-1)(2x)+tan^(-1)(3x)=(pi)/(4) , then find the value of x.

If tan^-1 2x+tan^-1 3x = frac{pi}{4} , then find the value of x.

If tan 3x = cot (30^@+2x) , then what is the value of x? यदि tan 3x = cot (30^@+2x) है, तो x का मान क्या है?

If A= tan^-1((xsqrt3)/(2k-x)) and B= tan^-1((2x-k)/(ksqrt3)) then find the value of A-B (A) 0^@ (B) 30^@ (C) 60^@ (D) 45^@