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a) √2^2 x 3^2 x 5^2 = 2x9x25 = 450 b) -√4x9x16 = -2x9x16 = -288 c) √0.01 x 0.25 = 0.1x0.25 = 0.025 d) √147/48 = 1.75

2. Square Numbers

... to figure out a general equation, substitute some values or plot a graph to evaluate the result..

3. F.4 maths.

1. 2sinβ+1 =0 sinβ=-1/2 β=210 or 330 2. tanβ cosβ+ 4sin(180-β) =(sinβ/cosβ)cosβ+4sinβ =sinβ+4sinβ =4sinβ 3. tan150+cos330 =tan(180-30)+cos(360-30) =-tan30+cos30 =(-√3/3)+(√3/2) =(3√3 - 2√3)/6 =√3/6

4. 數學 F.3 難題

Explanation as follows: 圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/Maths314.jpg?t=1216446684 2008-07-19 13:54:39 補充： Please tell me if I have misunderstood your question.

5. [中3升中4]數學問題

1. Let the equation of ST be y=mx+c. Sub coordinates S and T into y. -1=-4m+c------------(1) 3=2m+c--------------(2) Sub (1) into (2). 3=2m+4m-1 m=1/3 Sub m=1/3 into (1) -1=-4(1/3)+c c=1/3 Equation of ST...

6. EPA question

...teacher-the teacher is in control of group membership Student work is evaluated solely by the teacher Implementation considerations To...

7. 翻譯 to english

...private life the picture, very is generally speaking difficult to be able to evaluate inelegant or obscene, even if is evaluated not elegantly, the fine very...

8. Byzantine empire的3條問題!!~ (20 分!!!)

Byzantine Empire in about 1000 had control most of the regions around the Mediterranean Sea. Yes, he revived the roman empire, and it is called New Rome. His contributions...