Alek Math Exam equations flashcards
what is i?
i is an imaginary number or complex numbe4r
what does i^2 equal?
i^2 equals -1
what does i equal?
i equals the square root of -1
what does SOH-CAH-TOA stand for?
sin(opposite hypotenuse), Cos(adjacent hypotenuse), Tan(opposite adjacent)
what is csc?
csc is the opposite of sin
what is the formula for csc?
hypotenuse / opposite or 1/sin
what is the formula for sec?
hypotenuse/ adjacent or 1/cos
what is the formula for cot?
adjacent/opposite or 1/tan
if you are trying to find a circular trig function how would you label the triangle
the bottom of the triangle would be labeled x, the vertical side would be labeled y and the
what are the coordinates for the first quadrant
(+,+)
what are the coordinates for the second quadrant?
(-,+)
what are the coordinates for the third quadrant?
(-,-)
what are the coordinates for the fourth quadrant?
(+,-)
what is the tangent function
y = tan x
what is the cycle for a tangent?
negative pi/ 2
what is the period for tangent?
pi
what is the amplitude of tangent?
there is no amplitude
what is the formula for csc?
hyp/opp
what is the formula for sec?
hyp/adj
what is the formula for cot?
adj/opp
how does absolute value work?
is its distance from zero (0) on a number line. This action ignores the “+” or “–“ sign of a number because distance in mathematics is never negative.
what is the power of a power rule
(a^m)^n = a^mn
what is the power of a product rule
(ab)^n= a^nb^n
