Question
 Choose the correct phrase from the options to improve
the sentences given below. If the sentence is correct and no improvement is required, select ‘E’ as your answer. He wrote down a few key words to help him remember to say .Solution
Here, ‘what to say’ is correct. He wrote down a few key words to help him remember what to say .
If tan 3.5θ x tan 6.5θ = 1 then the value of tan 5θ is
If tan 4θ = cot 14θ, then find the value of cos 9θ.
What is the value of cos [(180 – θ)/2] cos [(180 – 9θ)/2] + sin [(180 – 3θ)/2] sin [(180 – 13θ)/2]?
If A lies in the first quadrant and 6 tan A = 5, then the value of 8 sin A−4 cos A / cos A+2 sin A is :
- If sin (3A − 4B) = (1/2) and cos (A + B) = (√2/2), where 0° < A, B < 90°, then find the value of ‘A’.
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?Â
1. q3 – 2p + ...
- If X = 10°, find the value of:
cos²(3X) + sin²(6X) - tan²(3X) Find the value of tan(75°) using the identity for tan(A+B).
If sec a + tan a = 5/2, find the value of sin a.Â