construct a triangle DEF where mDE =7cm mDF =7cm and mEDF =60degree
2+9x=5xsquare
2+2
−(35−62)÷(51−2⋅27)
6×8/3
If x+5 is a factor of x cube + 2x square +-14x + k. Find k
if tanA+sinA=m, tanA-sinA=n, then prove that, √m(secA-1)=√n tanA or √n(secA+1)=√mtanA
x4x^{4}x4+x-1
20% as a decimal number
Solve this system equation:
2x^2 y^2 - 9y - 108 = 0
x + y + 3 = 0