`(2)/(5)=(x-1)/(10)` then `x=`

If 5 ((x)/(6) + (1)/(2)) = 5x - 10 , then x = ____

If (x+(1)/(x))=2cos((pi)/(10)), then x^(5)+(1)/(x^(5))=?

Find the each of the following products: ((2)/(5)x - (1)/(2)y)(10x - 8y)

Let (1+x+x^(2))^(5)=a_(0)+a_(1)x+a_(2)x^(2)+…….+a_(10)x^(10) then value of a_(1)+a_(4)+a_(7)+a_(10) is ……

Evaluate int(2^(x+1)-5^(x-1))/(10^x) dx

if x+log_(10)(1+2^(x))=x log_(10)5+log_(10)6 then x

If (log)_(10)[1/(2^x+x-1)]=x[(log)_(10)5-1] , then x= 4 (b) 3 (c) 2 (d) 1