An observer 12 m away from the foot of tree observes that the angle of elevation is 30° find the height of tree
2 answers:
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Answer: 142506
Step-by-step explanation:
Given : The total number of choices for people in committee = 30
The number of people need to be chosen =5
Since , here order doesn't matter, so we use combination.
The combination of r things taking from n at a time is given by :-
Now, the number of possible combinations of 5 people be chosen from a total of 30 possible people :-
Hence, the committee can be made in 142506 ways.
The false (wrong) equation among them is : A
Because any number in a modulus comes out to be positive.