Solve-3cos5x-4sin4x-3-0-in-R-

Question Number 137103 by Boucatchou last updated on 29/Mar/21

S o l v e 3 c o s 5 x - 4 s i n 4 x - 3 = 0 i n R

Answered by MJS_new last updated on 30/Mar/21

obviously x = 2 n π is a solution

the others can only be approximated

x \approx . 966119 + 2 n π

x \approx 1.47065 + 2 n π

x \approx 2.39052 + 2 n π

x \approx 2.86574 + 2 n π

x \approx 5.90132 + 2 n π

with n \in Z

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