caity2006
17.04.2020 •
Mathematics
Val have 6 5/8 feet of lumber she 2 cut 1/2 feet of lumber to make a bird house how many feet of lumber does she have left
Solved
Show answers
More tips
- A Auto and Moto How Can Parking Sensors Help Drivers?...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- D Dating, Love, Relationships How Long Can Love Last?...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
- F Food and Cooking How to Quickly Put your Child to Sleep?...
- C Computers and Internet How to Create a Website for Free and Easy?...
Answers on questions: Mathematics
- M Mathematics Write a proof if a, number p is prime. then it is an odd integer...
- M Mathematics Asmall candle costs $2.25 an a large candle costs $4.75. jerome cannot spent more than $80. write an inequality that models the amount spent on small and large candles. then...
- M Mathematics L•w•h l=8 w=31 h=20 i keep getting the answer wrong...
- M Mathematics Determine the rational roots of 2x5 - 11x4 + 14x3 - 2x2 + 12x + 9 = 0 1/2 1 3/2 3 9/2 9 -1/2 -1 -3/2 -3 -9/2 -9...
- M Mathematics determine the measure of angle e in the following regular polygon....
- M Mathematics Which of the following functions is graphed below?...
- M Mathematics Use the disk method to find the volume of the solid generated when the region bounded by y equals 11 sine x and y equals 0, for 0 less than or equals x less than or equals...
- M Mathematics Hello can you me posted picture of question...
- M Mathematics Write an equation of the hyperbola given that the center is at (2, -3), the vertices are at (2, 3) and (2, - 9), and the foci are at (2, -3 ± 2√10...
- M Mathematics Which can be used to describe the expression? check all that apply.(r -4)3there are three factors of r -4.the expression is equal to 1 over 12 factors of r.adding the exponents...
Ответ:
idk i just need the points
Step-by-step explanation:
Ответ:
Step-by-step explanation:
sin^2(x)= 3 cos^2(x)
Subtract sin^2(x) on both sides
0=3cos^2(x)-sin^2(x)
By Pythagorean Identity sin^2(x)+cos^2(x)=1, we can replace cos^2(x) with 1-sin^2(x)
0=3(1-sin^2(x))-sin^2(x)
Distribute
0=3-3sin^2(x)-sin^2(x)
Combine like terms
0=3-4sin^2(x)
Add 4sin^2(x) on both sides
4sin^2(x)=3
Divide both sides by 4
sin^2(x)=3/4
Take the square root of both sides
sin(x)=+ or - sqrt(3/4)
sin(x)=+ or - sqrt(3)/sqrt(4)
sin(x)=+ or - sqrt(3)/2
This happens on the unit circle at
60 degrees
120 degrees
240 degrees
300 degrees
If we go around and around again forwards or backwards, we get the infinitely many other solutions including the one's already stated in the following solution sets
(60 +360n) degrees
(120 +360n)degrees
(240 +360n)degrees
(300 +360n)degrees
where n is an integer
x is 120 degrees or (120+360n) degrees in the second quadrant. I didn't know if you were just looking for solutions in the first nonnegative cycle of the unit circle or not.
240 degree one or the (240+360n) degrees terminates in the third.