CAT Question of the Day Two sequences, an and bn are defined as follows;  a0 = a1 = 1  b0 = 1 and b1 = 3 n is a non-negative integer.  | OPTIONS | | |  | 1) | 2021055 | | | 2) | 2027091 | | | 3) | 2023066 | | | 4) | 2025078 |
Tip of the Day Questions based on vocabulary can also be solved using an analytical approach. Analyzing the sentence in which the word is used can give clues towards finding the contextual meaning of the word even if you do not know the dictionary meaning of the word. Last year's Question of the day (30-Nov-11) In Δ ABC, O is the orthocenter and D, E and F are the feet of perpendicular to sides BC, AC and AB from point O respectively. Which of the following holds?
| OPTIONS | | | | | 1) | BC(BD2 – DC2) + AC(CE2 – EA2) + AB(AF2 – FB2) = 0 | | | 2) | BC(BD – DC) + AC(CE – EA) + AB(AF – FB) = 0 | | | 3) | BD + CE + AF = DC + EA + FB | | | 4) | (BD2 + CE2 + AF2) – (DC2 + EA2 + FB2) = Area of Δ(ABC) | | | 5) | 2 (BD2 + CE2 + AF2) – 2 (DC2 + EA2 + FB2) = Area of Δ(ABC) |
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