Question
How many numbers of five digits may be formed with the
digits 7, 2, 0, 0, and 1?     ÂSolution
 3 p1 
ways and remaining 4 digits  (as 0 occurs twice) ways  3p1×   =  = 36 ways
More Permutation and combination Questions
If (tan 8θ · tan 2θ = 1), then find the value of (tan 10θ).
-Constable/1717566135-21.JPG)
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If cos2B = sin(1.5B + 41o), then find the measure of 'B'.
- Simplify the following trigonometric expression:
15 cos 27° sec 63° − 9 cot 61° tan 29° The value of (3tan10°-tan³10°)/(1-3tan²10°) is equal to
Find the value of sin 240 °
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