Proofs Flashcards
1
Q
Rewrite sin2x
A
2
Q
Rewrite Cos2x
A
3
Q
Rewrite tan2x
A
4
Q
Show that cos(3x)=4cos(x)^3-3cos(x)
A
5
Q
sin(3x)=-4sin(x)^3+3sin(x)
A
6
Q
Prove from first principles that D/d@ sin@ = cos@
A
7
Q
show thederivative of y=a^x is a^xlna for any constant a>0
A
8
Q
intergrate Ln x = xLnx -x +c
A
9
Q
intergrate cos^”x
A
10
Q
priove the sum of first n terms geometric
hint: work back from fb eq
sn= {a(1-r)} / 1-r
A
11
Q
priove the sum of first n terms arithmetic
A
12
Q
proove by contradiciton -/2 is irration no.
A
13
Q
prove that there are indefinitely prime number
A
14
Q
derive suvat equation
A
15
Q
derive projectile motion formulae
A
