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Diketahui h (x) = x+3/2-x maka h -¹ (-2) adalah….

diketahui h (x) = x+3/2-x
maka h -¹ (-2) adalah….

Jawaban yang benar adalah 7

Ingat kembali:
Untuk menentukan nilai dari suatu invers fungsi maka subtitusikan nilai x = a ke persamaan f–¹(x) sehingga diperoleh nilai dari f–¹(a)

Jika diketahui f(x) = (ax + b)/(cx + d), x ≠ –d/c maka f–¹(x) = (–dx + b)/(cx – a), x ≠ a/c

Diketahui:
h(x) = (x + 3)/(2 – x)
Ditanya:
h–¹(–2) = ….
Jawab:
h(x) = (x + 3)/(2 – x)
➡️ a = 1, b = 3, c = –1, d = 2
h–¹(x) = (–dx + b)/(cx – a)
h–¹(x) = (–2x + 3)/(–x – 1)

h–¹(–2) = {–2·(–2) + 3}/{–(–2) – 1}
h–¹(–2) = (2·2 + 3)/(2 – 1)
h–¹(–2) = (4 + 3)/1
h–¹(–2) = 7/1
h–¹(–2) = 7

Jadi, nilai dari h–¹(–2) adalah 7

Baca Juga :  Complete the sentences with a form of the verb in parentheses. Three hundred and fifty years ago, people (1. make) /made/ their own clothes. They (2. have, not) _____ machines for making clothes. There (3. be, not) _____ any clothing factories. People (4. tear) _____ homemade clothes that were sewn by hand. Today, very few people (5. make) _____ their own clothes. Clothing (6. come) _____ ready-made from factories. People (7. buy) _____ almost all their clothes from stores. The modern clothing industry (8. be) _____ international. As a result, people from different countries often (9. wear) _____ similar clothes. For example, people in many different countries throughout the world (10. wear) _____ jeans and t-shirts. However, some regional differences in clothing still (11. exist) _____ for instance, people of the Arabian deserts (12. wear) _____ loose, flowing lobes to protect themselves from the heat of the sun. In parts of Northern Europe, fur hats (13. be) _____ common in the winter. In the future, there (14. be, probably) _____ fewer and fewer differences in clothing. People throughout the world (15. wear) _____ clothes from the same factories. (16. We all, dress) _____ in the future? TV shows and movies about the future often (17. show) _____ everybody in a uniform of some kind. What (18. you, think) _____? Number 11