Cos 120: The exact value of cos ( 120

The exact value of cos ( 120 °) is -1/2. We can find this exact value by using the double angle identity for cosine. Double Angle Identity: cos (2 x)... PAGE NO: 8.6 Express each of the following as the sum or difference of sines and cosines: 2 sin 3x cos x Find the value of sin 210∘+ cos 120 ∘+tan 225∘+ 315∘+ 300∘+cosec 150∘You visited us 1 times! Enjoying our articles? Unlock Full Access! Whole blood has a surface tension of 0.058 N/m and a density of 1050 kg/ m 3. To what height can whole blood rise in a capillary blood vessel that has a radius of 2.2 × 10 − 6 m if the contact angle is zero?