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Principle Of Mathematical Induction

Question

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In $triangle ABC comma space$ show that:

$1 over straight a cos squared open parentheses straight A over 2 close parentheses plus 1 over straight b cos squared open parentheses straight B over 2 close parentheses plus 1 over straight c cos squared open parentheses straight C over 2 close parentheses space equals space straight s squared over abc$

Solution

Solution not provided.

Some More Questions From Principle of Mathematical Induction Chapter

If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.

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