Calculate the length BC. Give the answer to three significant figures. Use the form \(a^2 = b^2 + c^2 - 2bc \cos{A}\) to calculate the length. \(\text{BC}^2 = 3^2 + 7^2 - 2 \times 3 \times 7 \cos ...

The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

This came after the Securities and Exchange Board of India (Sebi), in May, notified an amendment to the Listing Obligations and Disclosure Requirements (LODR) rules requiring large listed ...