2sin2 380 sec2 520 + cos 640 sin 260 + sin2 640 / tan2 280 + cot2 230 – sec2 670 – cosec2 670 = 2 × 1 + cos2 640 + sin2 640 \ tan2 230 + cot2 230 = 2 + 1 / -(sec2 θ – tan2 θ) – (cosec2 θ – cot2 θ) = 3/-1-1 = -3/2 Sin A sec B = 1 If A + B = 900 Sec2 θ – tan2 θ = 1 cosec2 θ – cot2 θ = 1 Sin 2 θ + cos2 θ = 1
How is S related to B?
E is the son of A. D is the son of B. E is married to C. C is B’s daughter. How is D related to E?
Who is the wife of E?
How is S related to Z?
Answer the questions based on the information given below.
‘L@M’ means ‘L is the father of M’.
‘L&M’ means ‘L is the sist...
There are six persons, M, N, O, P, Q and R in a family. R is the paternal grandmother of M. O is the sister of Q. N is the father of O. M is the only so...
How D is related to E?
How is H related to son of M?
Introducing a woman, a man said, 'Her sister’s mother is the only daughter of my grandmother.' How is the man related to this woman?
How is S related to R, if T has only one daughter?
