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x4 + x - 4 = 47 x4 + 1/x 4 = 47 Add 2 both sides x4 + 1/x 4 + 2 = 49 The above expression is of the form a2 + b2 + 2ab = (a + b)2 where a = x and b = 1/x Then the above expression becomes (x2 + 1/x2)2 =72 Taking square root on both sides (x2 + 1/x2) = 7 Again adding 2 both sides (x2 + 1/x2 + 2) = 9 (x + 1/x)2 = 32 Taking square root on both sides (x + 1/x) = 3
Statement :No cup is a medal.
All medals are trophies.
No trophy is a shield.
Some shield are prizes.
Conclusion:
I. ...
Some tyres may be flowers. Some jungles are not rains. Some flowers are petals.
Statement:
Only car are bus.
No bus is train.
Only bike are train.
Conclusion:
I. No train is car.
II. S...
Statements:
Some Sodas are Juice.
All Juices are Lime.
No Juice is Coke.
Some Cokes are Pepsi.
Conc...
Statements:
cups + sets.
sets + fours.
fours - claws.
claws + traps.
Conclusions:
I. claws + sets.
II. ...
Statements:
All Before are After
All After are Behind
Some Before are Opposite
Conclusions:
I. Some After are Oppo...
Statements:
All ribbons are mat.
Some mats are ropes.
No rope is a thread.
All thread is a needle.
<...Statements:
Few Blue are Purple.
No White is Purple.
Some White is Black
Conclusions:
I. All Blue can be W...
Statements: All bottle are cups.
No cup is a plate.
Conclusions: I. No bottl...
Statements:
No Summer is Winter.
Only a few Winter is Autumn
Some Summer are Spring.
Conclusions:
I. All W...
