how do you prove A-B = B-A

1/ Prove that the set V=R+ ( the set of all positive real numbers) is a vector space with the follow...

If x=sit t nad y=cos 2t prove that d^2y/dx^2+4=0

prove that (sin^4x-cos^4x)/(sinx-cosx) = sinx+cosx

prove that the following are identity 1. (cotA+cosecA-1)/(cotA-cosecA+1)=cosecA+cotA 2. (sinA-cosA...

Prove that if ab = ac (mod n) and a is relatively prime to n, then b = c (mod n). Proof: a and n...

Given that a,b,c >0 Prove : (a/b + b/c +c/a)(b/a +c/b +a/c)>0

Prove csc(pi/2-x)=sec x. a. csc(pi/2-x)=1/sin(pi/2)cosx+cos(pi/2)cosx=sec x b. csc(pi/2-x)=1/sin...

Prove that- tan^-1(1/2tan 2A)+tan^-1(cotA)+tan^-1(cot^3A) ={0,ifpi/4<A<pi/...

prove dat Cos(18°) = 1/4√10+2√5

Given SV//TU and SVX=UTX Prove: VUTS is a parallelogram Write a paragraph proof.

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