1. Solve the following equations on the interval {0 ≤ ≤ 2}. Round your answer to two decimal places where exact solutions are no
t possible.
a. cos+(√3)/2=0
b. 3(tan+1)=2
c. tan^2=121
d. 6sin^2−5cos−2=0
e. 3sin+3cos2=2
f. sin3=−(sqrt 3)/2
g. 8sin^2−8sin+1=0
a. cos+(√3)/2=0
b. 3(tan+1)=2
c. tan^2=121
d. 6sin^2−5cos−2=0
e. 3sin+3cos2=2
f. sin3=−(sqrt 3)/2
g. 8sin^2−8sin+1=0
1 answer:
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Answer:
When squaring a fraction, square both numerator AND denominator
Answer:
21 pieces of chickens.
Step-by-step explanation:
Given:
The farmer has a total of 40 animals. ( cows and chicken )
He counts the legs of all his animals and realizes he has a total of 118 legs.
Question asked:
How many chickens does the farmer have ?
Solution:
Let number of chickens =
Then number of cows =
Now, as here given that total number of legs are 118 of all the animals, and as we know that a chicken has two legs and cow has four legs, hence the equation will be :
<u>Total number of legs = Number of legs having chickens + Number of legs having cows</u>
Subtracting both sides by 160
By adding both sides by minus
By dividing both sides by 2
Hence, farmer have 21 pieces of chickens.