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الانزلاق: 1
Good morning! Today we are going to be reviewing for our test tomorrow!
TRIGONOMETRY REVIEW!
Yesss! This will be easy! It'll bring my grade up!!
Really...since when do have a test...I know nothing...
الانزلاق: 2
Let's start with something simple.
Solve for a
Remember!SOH= sin0=opp/hypCAH= cos0=adj/hypTOA= tan0=opp/adj
a
30
7
This is light work!
tan30=a/7(7)7tan30=a4.04=a
Okay...I guess i'll give it a try...
tan30=a/7(7)7tan30=a4.04=a
الانزلاق: 3
LAW OF SINES:
a/sinA=b/sinB= c/sinC
a
10
10/sin33= a/sin58 - asin33=10sin58asin33/sin33=8.48/sin33a=15.57
58
33
Remember: a, b, c are the sides and sinA,sinB, sinC are the angels.
Laws of sines will be part of your test so copy down the example if you don't have it already.
الانزلاق: 4
Who remembers the 30, 60, 45 chart? Camila? Mario?
306045S1/2√3/2√2/2C√3/21/2√2/2T√3/3√31
I know this by heart! For 30 its 1/2√3/2√3/360 is√3/2 1/2 √345 is √2/2√2/2 1
I also know it by heart! It might be the only thing I know.
الانزلاق: 5
Trig Equations Practice Problems:
(1,0)
2sinx +1 =0 -1-12sinx/2=-1/2sinx =-1/2x=210x=330
cos ^(2)x+cosx=0
cosx(cosx+1)=0
(0,1)
cosx=0 - x=90,270
30
(-1,0)
30
cosx+1=0 -1 -1 cosx=-1 - x=180
(0,-1)
Camila and Mario you each will do one problem up on the board.
Great job both of you! Camila how did you know where to draw the arrows? And Mario how did you get your answers?
I knew that x was cos and y was sin so I looked for where y was 0 and where y was -1.
Since the sinx was negative I did the opposite of sign in the graph which was tan and cos.
الانزلاق: 6
The Next Day....
TEST TODAY! GOOD LUCK CLASS!
95.5%
I GOT 100! YESSSSS!
100%
I PASSED WITH AN A+!... and I thought I was going to fail!
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من القصص المصورة
لا توجد تنزيلات ولا بطاقة ائتمان ولا حاجة إلى تسجيل الدخول للمحاولة!