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math
| Question | Answer |
|---|---|
| when it asks for the exact value of cos sin of something what do you do | plug it in to calc turn in to fraction |
| when you have degrees and your turning it in to radians what do you do | multiply the degrees by π/180 |
| when you have radians and your turning it in to degrees what do you do | multiply the radians by 180/π |
| whats the thing to renember where each sign thingy is postive | S A T C |
| when yor looking for tan what is it | sin/cos |
| when looking for cosecant | 1/sin(angle |
| when they give you a point and ask for cosecant or secant what do you do | say its cosecant take the sin value flip it and rationalize if needed |
| what are these values A, B, C , D y= Asin/cos(Bx) c | a is the amplitude b is the frequency c is the midline |
| how to find period | frequency = 2π |
| what do you do when looking for secant | 1/cos(angle |
| what do you do looking for cotangent | cos/sin |
| when you get a question telling you that its in standard postiont and its in a speciic quadrent find sin and cosecant or sm like that what do you do | well to first find out the quadent spcifics like whats negative and positive in there then find cos and sin then use that to fins the other one usually just flip it and rationalize |
| when it tells you an angle is in standered postion and its terminal point if (x,y ) find the exact value of sin/cosine and secant or cosecant what do you do | make a small graph build the triangle then use the pythagrium theorm to find the unknown side then use the soh cah toa to find what the sin value is and the cosine vaue is then use that to find the cosecant and secsant dnt foget rationalize |
| how do you find the range of something | you use the max and min |
| whats midline equation | max plus min /2 |
| what are the unit circle radian stuff | 0---π/2---π---3π/4---2π |
| what are all the rules for a cosine graph | when positive starts at max when negative starts at min not evry single point touches the a line like top middle bottom |
| what are all the rules for a sine graph | sine graph always starts at midline if positive starts going up if negative starts going down always touches a line max min midline |
| if u get a question that littely just gives u an angle and says where is the point of that angle on the unot circle what do you do | find the refrence angle plug in to calc |
| if you get a questoin giving u an equation and like a y=3 or sum and explain y y=6 is also equal to blank what do you od | find the period and if its adding perfectly then thats why |
| you get given a equation aking u to find all the values of everything and form a equatipn what do you do | check if its cos or sin by seeing i f it starts at max or min or at midline then get amplitude and find its frequency |
| sin(x) = ... ? | Cos( 90 - x) |
| you get a question that gives u sum like this (2x + 10) + (3x + 5) what you do | mke it equal to 90 |
| Tan (50 = | Cot(40 |
Created by:
Fernando.Quezada