On the difference between advanced mathematics and calculus Ask elder students, what is the difference between higher mathematics and calculus? Can you specify?

On the difference between advanced mathematics and calculus Ask elder students, what is the difference between higher mathematics and calculus? Can you specify?

Calculus and advanced mathematics

Urgent... Calculus... Limit If x →∞, 1 / (AX ^ 2 + BX + C) ≈ 1 / (x + 1), try to find the values of a, B and C

If x →∞, 1 / (ax ²+ BX + C) ≈ 1 / (x + 1), try to find the values of a, B and C. Because x ² Is the higher order infinity of X, according to the meaning of the question Lim 1 / (AX) ²+ BX + C) ≈ Lim 1 / (x + 1), X →∞ x →∞ can only make a = 0, otherwise it cannot be established. Similarly, B = 1, C = 1, so a = 0, B = C = 1

Find limit ~ calculus LIM (SiNx) ^ Tan ^ 2 (x) [xtrend Pie / 2]

ln(sinx)^tan^2(x)=tan^2(x)ln(sinx)=(1/cos^2(x)-1)ln(sinx)
The limit of this formula = Lim [ln (SiNx) / cos ^ 2 (x) - ln (SiNx)] = Lim [ln (SiNx) / cos ^ 2 (x)]
=lim[1/sinx*cosx/(2cosx*(-sinx))]=lim[-1/2sin^2(x)]=-1/2
‡ original formula = e ^ (- 1 / 2)

Calculus (limit) Given LIM (x → 0) (√ (AX + b) - 2) / x = 1, find a, B. I have calculated that B is equal to 4. How can I calculate a?

lim(x→0)(√(ax+b) -2)/x=1
lim(x→0)(√(ax+b) -2)=0,b=4
LIM (x → 0) (√ (AX + 4) - 2) / x = lobita = LIM (x → 0) a / [2 √ (AX + 4)] = 1
a=4

What do calculus one and calculus three mean? What about calculus two? I studied Tongji's advanced mathematics and didn't understand the calculus of the National People's Congress

There are a variety of online statements, which are simplified by students from different schools:
It may be the third lecture on calculus, the third volume of calculus, or the third part of calculus
But much is said: "multivariate function calculus", including ordinary differential equations and simple partial differential equations
Calculus is the simplest knowledge of calculus, such as limit, derivative and univariate function integral

Is the upper limit of integral greater than the lower limit of integral in the basic theorem of calculus

There is no definite size between the upper and lower limits in definite integral. This theorem also holds for the case where the upper limit is less than or equal to the lower limit. When the upper and lower limits are equal, both sides are 0. When the upper limit is less than the lower limit, both sides add a negative sign, that is, the case where the upper limit is greater than the lower limit