Question
In the following questions, a sentence is divided into
four parts. Choose the part(s) of the sentence which may contain a grammatical error in it. If all the parts of the sentence are grammatically correct and contextually meaningful, choose option (e) i.e. “no error” as your answer choice. Despite tapering of its use of fossil fuels, (a)/ the industrialised West remains dependent on natural gas and (b)/ continues to lag behind on fulfilling its promises of technology transfer (c)/ and financial assistance to the developing world for cleaner energy adoption. (d)Solution
(a) "Despite tapering of its use of fossil fuels," Error: Incorrect phrase — "tapering of" The correct construction is "tapering off", which is a phrasal verb meaning to gradually reduce.
- Simplify the following trigonometric expression:
15 cos 27° sec 63° − 9 cot 61° tan 29° If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
If (cos A - sin A) = √2 cos (90° - A), then find the value of cot A.


If tan 3.5θ x tan 6.5θ = 1 then the value of tan 5θ is
Find the maximum value of 14 sin A + 24 cos A.

- If cos θ = (4x² – 1)/(1 + 4x²) then find the value of sin q.
The minimum value of 9 cos2 θ + 36 sec2 θ is