Question
Experience is a hard teacher because she gives the test
first, the lesson ___________. Choose the correct preposition.Solution
âAfterâ must be followed by a noun, pronoun or gerund. If we do not like to use a noun/pronoun or gerund, we cannot use âafterâ but we can use âafterwardsâ. So, here, âafterwardsâ must be used.
If tan 4θ = cot 14θ, then find the value of cos 9θ.
If 17sin A = 8, where 0
Find the exact value of cos120°
If sin A = 3/5 and cos B = 4/5, where A and B are acute angles, find the value of sin(A + B).
If tan A = 1, then what will be the value of sec² A + cosec² A?
If 2cosA + secA = 2â2 , 0° < < 90°, then the value of 2(sec 4 A + cosec 4 A) is:
- Calculate the value of sin120 o  + cos180 o  + tan225 o .

If cos θ + sec θ = â5, then the value of cosÂł θ+ secÂł θ is: