Zadanie 7c
Hence explain why f has no interval on which it is increasing.
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Hence explain why f has no interval on which it is increasing.
Express d in terms of x.
Find P when d is as small as possible.
Find PQ.
Show that .
Given , find (i) x; (ii) the area of triangle ABC.
For Fund A: (i) find the monthly credit to two decimal places; (ii) find the yearly credit; (iii) write its balance after n years as 6000+pn; (iv) show that its balance after 5 years is USD 6990.
For Fund B, find to the nearest dollar (i) its balance after 5 years; (ii) the interest earned during those 5 years.
(i) Write Fund B’s balance after n years in the form 6000qⁿ. (ii) Find the smallest number of complete years after which Fund B exceeds Fund A.
Find a and b.