
代数和三角学公式详解

Quiz
•
Mathematics
•
12th Grade
•
Hard
Standards-aligned
Jinhan Ling
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个公式用于求解二次方程的根?
x = -b ± sqrt(b^2 - 4ac) / 2a
a² - b² = (a + b)(a - b)
a³ ± b³ = (a ± b)(a² ∓ ab + b²)
logₐ(xy) = logₐx + logₐy
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个公式适用于分解两平方数之差?
a³ ± b³ = (a ± b)(a² ∓ ab + b²)
logₐ(xⁿ) = n * logₐx
a² - b² = (a + b)(a - b)
logₐ(x/y) = logₐx - logₐy
Tags
CCSS.HSA.APR.C.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在哪个公式中,用于将对数相乘的情况转化为对数相加?
logₐ(xy) = logₐx + logₐy
logₐ(xⁿ) = n * logₐx
logₐ(x/y) = logₐx - logₐy
a * logₐx = x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个公式用于计算圆弧的长度?
cosecθ = 1/sinθ
扇形面积 A = 1/2 r²θ
tanθ = sinθ/cosθ
弧长 s = rθ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个不是三角函数关系式?
tanθ = sinθ/cosθ
cosecθ = 1/sinθ
secθ = 1/cosθ
cotθ = 1/tanθ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个公式用于因式分解两立方数的和或差?
logₐ(x/y) = logₐx - logₐy
logₐ(xⁿ) = n * logₐx
logₐ(xy) = logₐx + logₐy
a³ ± b³ = (a ± b)(a² ∓ ab + b²)
Tags
CCSS.HSA.APR.C.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在哪个公式中,用于将对数的幂转化为对数与指数的乘积?
logₐ(xy) = logₐx + logₐy
a² - b² = (a + b)(a - b)
a * logₐx = x
logₐ(xⁿ) = n * logₐx
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