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write down the trigonometric ration of Tan, Sine, Cosine
Tan = Opposite/Adj
Sine = Opp/hyp
Cosine = Adj/Hyp
x4 - 16
(x-2)(x+2)(x2+4)
Is fg(x) equal to gf(x)?
No
What is the inverse function of f(x) = x2-3
f(x) = (x+3)1/2
Radian is approximately? in degree
57
can you tickle yourself true or false? explain if you want extra point
When you try to tickle yourself, your cerebellum (which monitors body movements) anticipates the sensation and cancels out the surprise element, which is a key component of ticklishness.
hardest substance in human body
Enamel
F(x) = 2x+3
g(x) = x2 - 1
Find fg(2)
7
with which fruit do we share 50% of our DNA's with?
banana
Tongues are like fingerprints everybody has their own unique print true or false
true
when is a relation not a function
when you have one input and many outputs, when you don't have a unique relation between the two relations
Find the radius of the Circle and the coordinates of its centre
x2 + y2 -8x + 4y + 4 = 0
4, (4, -2)
write down arc formula and area of sector formula using radian
arc = r*(d)
area = 1/2*r^2*(d)
Find the equation of the straight line passing thorugh the points (-4,3) and (6, -2)
x + 2y = 2 or y=-1/2x+1
explain all vertical transformations
vector translation, -f(x), af(x)
The function f : x = x2 +8x -5 is defined for x<m where m is a constant state the smallest possible value of m for which f is one-one
m = -4
factorise 10x2+1201x+120
(10x+1)(x+120)
black caviar come from which fish
sturgeon fish
beluga, osetra, sevruga
perpendicular to the line 2x-3y = 12, passing through the point (8, -3)
3x+2y=18
or y=-3/2x+18
bacteria cells > Human cells?
true or false
true