100×1.09÷12
36 x 90 - 36 x y = 360
Prove that:
$\frac{sina+cosa+1}{sina+cosa-1}$ - $\frac{1+cosa-cosa}{1-sina+cosa}$ =2(1+coseca)
36 x 90 - 36 x * = 360
$\frac{sina+cosa+1}{sina+cosa-1}$ - $\frac{1+cosa-cosa}{1-sina+cosa}$
36 x 90 - 36 x * =
(8.76*10^3)/(7.65*10^-77)(2.54*10^5)
(f+3)−8(2f+3)
{(−2)
5 × (−3)
5
}
2
