It is given that: Hence, prove that the only real solution of the equation are given by Where n is an integer. I am really stuck with this Any help would be greatly appreciated. Thankyou.
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Originally Posted by bebrave Math Forum - Ask Dr. Math this link can help you Thankyou very much for your reply however im find with putting Sin 7x into the equation by demoivres , that was the first part of the question which i managed ...its the proof part im struggling with .
Use what you just proved. Substitute , substract . You then have . Show that has no real roots other than 0.
Originally Posted by Plato Use what you just proved. Substitute , substract . You then have . Show that has no real roots other than 0. Plato, you're awsome! Thanks again for another reply
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