Answer:
•cos(s+t) = cos(s)cos(t) - sin(s)sin(t) = (-⅖).(-⅗) - (√21 /5).(⅘) = +6/25 - 4√21 /25 = (6-4√21)/25
•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25
cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗
sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5
Step-by-step explanation:
That means 6/3 is equivalent to 2 wholes! When the numerator is divisible by the denominator, the fraction is equivalent a whole number. If the numerator is equal to the denominator, you will always have one whole, or 1.
Answer:
The Answer is gonna be :207
Answer:
"Confounding Variable"
Step-by-step explanation:
According to my research on statistical studies, I can say that based on the information provided within the question the term being defined in the question is called a "Confounding Variable". This is a variable that affects both the dependent variable and independent variable, this then causes a confusion in their relationship.
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Answer: Yes, it is worth the extra drive, going to the further store is cheaper.
The cheaper option saves you $0.89.
HOPE THIS HELPS PLZZ GIVE BRAINLEST.
