comprehension - /sinx-cosx/=√(1-sin2x) here '/ /' are depicting mode Q1. cos x>sinx then x belongs to 1) (0,pi/2) 2) (pi/2,pi) 3) (pi,5pi/4) 4) (5pi/4,9pi/4) Q2. Cos^2(3pi/4) + Cos^2(4pi/5) (3/4) (1/4) (5/4) (7/4)
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Originally Posted by gurparwaan comprehension - /sinx-cosx/=√(1-sin2x) here '/ /' are depicting mode Q1. cos x>sinx then x belongs to 1) (0,pi/2) 2) (pi/2,pi) 3) (pi,5pi/4) 4) (5pi/4,9pi/4) Q2. Cos^2(3pi/4) + Cos^2(4pi/5) (3/4) (1/4) (5/4) (7/4)
solve first question on the basis of comprehension
Originally Posted by gurparwaan solve first question on the basis of comprehension what do you mean by "comprehension" ?
Originally Posted by skeeter what do you mean by "comprehension" ? its a section which comes in competitive exams where u r given a littlle detail and on that basis u r given some questions
what I posted is a proof that ... ... is that not sufficient? otherwise, I do not understand what it is you are looking for.
Q.1 Write or
Originally Posted by gurparwaan Q2. Cos^2(3pi/4) + Cos^2(4pi/5) (3/4) (1/4) (5/4) (7/4) should this be ... ... a typo perhaps ?
Originally Posted by skeeter should this be ... ... a typo perhaps ? yes.
Originally Posted by skeeter recommend you derive and learn the trig values of the special angles on the unit circle ...
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