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CBSE Class 12-science Answered

find the sum
Asked by ishita605 | 10 Oct, 2016, 11:25: PM
answered-by-expert Expert Answer
Error converting from MathML to accessible text.
Answered by Vijaykumar Wani | 12 Oct, 2016, 10:41: AM

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CBSE 12-science - Maths
A man is moving away from a 40 m high tower at a speed of 2m/s . find the rate at which angle of elevation of the top of the tower  is changing when he is at a distance of 30m from foot of tower. Assume that eye level of the man is 1.6 m from the ground. explain in great detail
Asked by haroonrashidgkp | 08 Sep, 2018, 04:16: PM
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CBSE 12-science - Maths
Show that the function f (x) = 2x + 3 is strictly increasing function on R.
Asked by Topperlearning User | 06 Aug, 2014, 08:00: AM
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CBSE 12-science - Maths
Show that the function f (x) = x2 is strictly increasing function on [0,∞).
Asked by Topperlearning User | 06 Aug, 2014, 08:12: AM
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CBSE 12-science - Maths
Show that the function f (x) = ax, a > 1 is strictly increasing on R.
Asked by Topperlearning User | 06 Aug, 2014, 09:18: AM
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CBSE 12-science - Maths
Find the intervals in which f (x) = –x2 – 2x + 15 is increasing or decreasing
Asked by Topperlearning User | 06 Aug, 2014, 09:20: AM
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CBSE 12-science - Maths
Find the intervals in which the function f (x) is increasing, f (x) = 2x3 - 9x2 + 12x + 15
Asked by Topperlearning User | 06 Aug, 2014, 09:22: AM
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CBSE 12-science - Maths
Find the intervals in which the function f (x) is  decreasing f(x) = 2x3 + 9x2 + 12x + 20
Asked by Topperlearning User | 06 Aug, 2014, 09:29: AM
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CBSE 12-science - Maths
Find the intervals in which f (x) = (x + 1)3 (x - 3)3 is increasing or decreasing.
Asked by Topperlearning User | 06 Aug, 2014, 09:54: AM
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CBSE 12-science - Maths
Find the intervals in which the function f (x) = log left parenthesis 1 plus straight x right parenthesis minus fraction numerator 2 straight x over denominator 1 plus straight x end fraction is increasing or decreasing
Asked by Topperlearning User | 06 Aug, 2014, 10:12: AM
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CBSE 12-science - Maths
Determine the intervals in which the function f (x) = x4 – 8x3 + 22x2 – 24x + 21 is decreasing or increasing
Asked by Topperlearning User | 06 Aug, 2014, 10:17: AM
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