Question
Solution
B- ‘From’ should be replaced by ‘since’ to make the sentence contextually correct. As the sentence talks about an occurrence which is still continuing, thus the usage of ‘since’ will be correct. ‘From’ is correctly used while depicting a long period of time. E- The word pandemic will be followed by the preposition ‘in’, as the sentence needs to specify ‘where’ exactly was the pandemic taking place. Correct Sentence: Telecommuting arrangements have been in place at the U.N. headquarters since mid-March as coronavirus spread rapidly across New York, making the state the epicentre of the pandemic in the U.S .
If (cos A - sin A) = √2 cos (90° - A), then find the value of cot A.
- If (tan 4x · tan x = 1), then find the value of (tan 5x).
If cos θ + sin θ = m, sec θ + cosec θ = n then n(m 2 – 1) is equal to?
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 :
- Find the value of sin²33° + sin²57° + cos²48° + cos²42°.

If acos 3 θ + 3asin 2 θcosθ = m and asin 3 θ + 3asinθcos 2 θ = n, then find the value of (m + n) ...
If cos² x + sin x = 5/4, then find the value of 'sin x'.
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°