Question
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find
out the value of cos A?Solution
cos A = (b2+c2 - a2)/2bc = (102+52-62)/(2×10×5) = 89/100
If ‘L * N @ O × P % O × M @ Q’ is true then how is Q related to O if Q is female?
Read the given information carefully and answer the question that follows.
‘B $ C’ means ‘B is the father of C’.
‘B & C’ means...
If "L $ M @ N & C % O # P & Q © R", then how is L related to P?
If L is mother of M’s father then which of the following is true?
If 'X@Y' means 'X is married to Y', 'X#Y' means 'X is mother of Y', 'X$Y' means 'X is sister of Y', 'X%Y' means 'X is brother of Y. If 'L @ M # N @ O #...
If G @ H & I % J @ L ^ K then how is J related to H?
If "I & J # S % O * D & L @ N" is definitely true, then how is O related to J?
If A × B means that A is the brother of B, A – B means that A is the sister of B, A + B means that A is the father of B then which of the following e...
Answer the questions based on the information given below.
L + M means L is the wife of M.
L ? M means L is the son of M.
L...
Which of the following can be the correct conclusion drawn from the expression?
‘R + S % T $ U @ V’?
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