" If "tan^(-1)(4)+tan^(-1)(5)=cot^(-1)(lambda)" then "lambda" is "

tan^(-1)4+tan^(-1)5=cot^(-1)lambda, then find lambda

If tan^(-1) 4 + tan ^(-1) 5 = cot^(-1) lambda " , then find " 'lambda'

If tan^(-1) 4 + tan ^(-1) 5 = cot^(-1) lambda " , then find " 'lambda'

If tan^(-1) 4 + tan ^(-1) 5 = cot^(-1) lambda " , then find " 'lambda'

Sometimes we are just concerned with finding integral solutions to equations. Consider the equation tan^(-1)(1/m)+tan^(-1)(1/n)=tan^(-1)(1/lambda) , where m, n, lambda in N For lambda=11 , an integral pair (m, n) satisfying the equation is:

If 2"tan"^(-1)(1)/(5)-"sin"^(-1)(3)/(5)= -"cos"^(-1)(9lambda)/(65) , then lambda=

If 2"tan"^(-1)(1)/(5)-"sin"^(-1)(3)/(5)= -"cos"^(-1)(9lambda)/(65) , then lambda=

Sometimes we are just concerned with finding integral solutions to equations. Consider the equation tan^(-1).(1)/m+tan^(-1).(1)/n=tan^(-1).(1)/lambda , where m,n, lambda in N If lambda is such that lambda^2=1 is a prime, then how many solutions (m,n) are there for the equation?