![gigi813](/avatars/28020.jpg)
gigi813
09.06.2021 •
Mathematics
F(x) = x^2. What is g(x)?
Solved
Show answers
More tips
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- P Philosophy 8 привычек, чтобы достичь счастливой жизни...
- F Food and Cooking How Many Grams Are In a Tablespoon?...
- G Goods and services How to Choose the Right Iron: Purchase Tips...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- H Health and Medicine How to Choose the Right Glasses?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Flu: How to Recognize It by the First Symptoms?...
Answers on questions: Mathematics
- M Mathematics Jane investor purchased a $10,000 bond at 90. the annual interest is 5%. what was the cost of the bond? what was the annual interest? what is the yield (to the nearest tenth...
- M Mathematics What is the probability that when rolled a die will come up with either a 1 or 2 ? a. 50% b. 66% c. 33% d. 75%...
- M Mathematics Any i can get on this ? i really don t know how to do it...
- M Mathematics 21/4 - 2/3. a. 1 3/7. b. 1 7/12. c 2 3/7. d 2 11/12...
- M Mathematics Rays have two endpoints. true false...
- M Mathematics Rebecca gives gifts to 12 employees. each gift is in a box that is 12 x 10 x 3 . how much wrapping paper does rebecca need to completely cover the boxes?...
- M Mathematics If $1,100 is deposited into a saving account 11% interest paid annually how much money will be in the account in 10 years...
- M Mathematics Count the possible combinations of 4 letters chosen from d, e, f, g, h....
- M Mathematics There are four steps for converting the equation x^2+y^2+12x+2y-1=0 into standard form by completing the square. complete the last step....
- M Mathematics Acup on the teachers desk contains 12 pens. there are 3 pens with blue ink and 9 with black ink. one student at a time selects a pen at random to sign the attendance sheet and...
Ответ:
This becomes way easier if you have the knowledge of inverse functions.
Let me make this clear. You have f(x)=x2+1 f(x)=x2+1 and g(f(x))=1/(x2+4)g(f(x))=1/(x2+4). Now pause and think about the second function. The function is defined as g(f(x))g(f(x)), right. now what if there is some way that you could manipulate this function and some how change it to g(x)g(x). Or think about with what other function should you multiply f(x)f(x) [the function in g(f(x))g(f(x)) ] to get xx [so that the function would be g(x)g(x)]. It is f(x)−1f(x)−1 right.
So let us find f(x)f(x) inverse. f(x)=x2+1f(x)=x2+1 then f(x)−1=x−1−−−−−√f(x)−1=x−1 right [ just swipe the xx with f(x)
Ответ:
a = 4, d = 5 - 4 = 1, n = 150
Sn = n/2[2a + (n - 1)d]
S(150) = 150/2[2(4) + (150 - 1)1] = 75[8 + 149] = 75(157) = 11,775