Everything

Question 1

Equation for nth term in GEOMETRIC sequence?

Answer 1

a x r^n-1

Question 2

Equation for sum of n terms GEOMETRIC POGRESSION??

Answer 2

a(r^n -1)/ r-1

Question 3

Sum of infinite terms, GEOMETRIC POGRESSION?

Answer 3

a / 1-r

Question 4

General term of an AP?

Answer 4

a+(n-1)d

Question 5

Sum of first n terms of an AP?

Answer 5

n/2 (2a+(n-1)d)

Question 6

∫ 𝑓(𝑥) + ∫ 𝑔(𝑥) ?

Answer 6

∫ [𝑓(𝑥) + 𝑔(𝑥)]

Question 7

limits b and a ∫ 𝑓(𝑥) = 𝐹(𝑏) − 𝐹(𝑎), where 𝐹′(𝑥) = 𝑓(𝑥),

Answer 7

limits b and a ∫ 𝑓(𝑥) = 𝐹(𝑏) − 𝐹(𝑎), where 𝐹′(𝑥) = 𝑓(𝑥),

Question 8

Composite numbers?

Answer 8

Not prime

Question 9

sum of interior angles of a shape?

Answer 9

(n-2) x 180

Question 10

exterior angle of regular shape?

Answer 10

360/n

Question 11

Deci?

Answer 11

10^-1

Question 12

Arc length ?

Answer 12

2πr x (theta/360)

Question 13

Area of sector?

Answer 13

(theta/360) x πr^2

Question 14

Area of segment?

Answer 14

Area of sector - triangle

Question 15

loga(a^b)

Answer 15

=b

Question 16

a^loga(b)

Answer 16

=b

Question 17

Condition for intersection of circles?

Answer 17

r1 - r2 < d < r1+r2

Question 18

Degrees to radians?

Answer 18

x pi /180

Question 19

Radians to degrees?

Answer 19

x 180/pi