The least value of the expression `5^(sinx-1) + 5^(-sinx-1)` is

The least value of the expression 5^(sin x-1)+5^(-sin x-1) is

The least value of 5^(sinx-1)+5^(-sinx-1) , is

The least value of 5^(sinx-1)+5^(-sinx-1) , is

If x_(1),x_(2),...,x_(n) are real numbers, then the largest value of the expression sinx_(1)cosx_(2)+sinx_(2)cosx_(3)+...+sinx_(n)cosx_(1), is

If x_(1),x_(2),...,x_(n) are real numbers, then the largest value of the expression sinx_(1)cosx_(2)+sinx_(2)cosx_(3)+...+sinx_(n)cosx_(1), is

If (5pi)/(2)ltxlt3pi , then the value of the expression (sqrt(1-sinx)+sqrt(1+sinx))/(sqrt(1-sinx)-sqrt(1+sinx)) is

If (5pi)/(2)ltxlt3pi , then the value of the expression (sqrt(1-sinx)+sqrt(1+sinx))/(sqrt(1-sinx)-sqrt(1+sinx)) is

If (5pi)/(2)ltxlt3pi , then the value of the expression (sqrt(1-sinx)+sqrt(1+sinx))/(sqrt(1-sinx)-sqrt(1+sinx)) is

If (5pi)/2