6 x 4/5
solve 4x$^{2}$+21x+5=0
f(x)=sinx then find f'(2d)
50*x +25*2x=3400
raiz cuadrada de 227
2 1/3 x 1 3/5
solve, sin3x+cos3x=1/2
3/8 x 4/15
(
8
1
ab
)⋅(
11
−8
bc
3
−22
ca)
2 7/12 x 8