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Start learning 50% faster. Sign in nowsin 2 17˚ + sin 2 19˚ + sin 2 21˚ + sin 2 23˚ + ……… + sin 2 77˚ = (sin2 17˚ + sin2 73˚) + (sin2 19˚ + sin2 71˚) + .…. + (sin2 43˚ + sin2 47˚) + sin2 45˚ = (sin2 17˚ + cos2 17˚) + (sin2 19˚ + cos2 19˚) + .…. + (sin2 43˚ + cos2 43˚) + sin2 45˚ {As sin (90˚ - θ) = cos θ} = (1)+(1) + .…. upto 14 times + sin2 45˚ { As sin 2 θ + cos 2 θ= 1} = 14 + sin2 45˚ {As there are 14 odd numbers from 14 to 43}. = 14 + (1/√2)2 {As sin 45˚ =1/√2 } = 14 + 0.5 = 14.5 ` ` ` ` ` ` ` ` ` ` ` `
Who among the following is the mother of G?
M has two sons and one daughter. R and V are the two married sons of M. Q is the son of R. U is the daughter of N. P is married to R. N is married to V....
Answer the questions based on the information given below.
There are eight family members L, M, N, O, P, Q, R and S having two married coupl...
How is W related to S?
If ‘G × H’ means ‘G’ is father of ‘H’, ‘G + H’ means ‘G is wife of H’ and ‘G &di...
How is K related to J?
O is married to N. Z is the daughter of O, who is the mother-in-law of P. W is the son of P. N has only one child. How is N related to P?
Which among the following statement is definitely incorrect?
How is G related to I?
_____ is the father of _____.
I. V, U
II. P, Q
III. U, T