【國三】Laws of integral indices (數學)
我本來不想發文的@@...
但是我計算得到的答案相差了0.1...= =
問題來了~~~(?
(For the following questions,give your answers correct to 3 significant figures if necessary.)
(9)The screen of a portable multimedia player is a rectangle with the dimensions of 7.62cm X 6.75cm. Its resolution is 320 X 240 pixels.
(a)Find the length and width of each light spot. (i.e. 1X1 pixels)
(b)find the area of each light spot.(express your answers in scientific notation)
(a)可以無視(?
因為(b)是這篇文的重點OAO |
