Acomputer was on sale for 2/3 of the original price. if the original price was $900 what was the sale price? show work .

Divide $900 by 2/3 .

The computer now costs : $600.

So first you divide 900 by 3, which gives you 300,right? 300 is only one third of the 900, so you need to get to two thirds, which is why you would add another 300, which brings you to $600.

Sin(a)+cos(a)+cot(a)-1=2(csc(x)+1)