In the given figure,as per law of cosine which is the correct formula for a^{2}
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Law of cosineis applicable if we know All three sides of triangle two angle and sides included All three angles All three sides of triangle two angle and sides included All three angles
Find angle A in the following figure
2(bc cos A+ ca cos B + ab cos C) =
Two ships A and B, lies 33 m apart on the sea surface. There is submarine ‘C’ on the sea bed. The angle of depression of C from A is 60^{0 }and the distance AC is 40 m. Calculate the distance BC.
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209 videos443 docs143 tests
