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Showing posts from December, 2013

learn trignometric table

1.write 0,30,45,60,90 in 1st row 2.sin,cos,tan in column  3. write 0,1,2,3,4 in front of sin under respective column of step 1 4. divide the step 3 values by 4  5. take under root of step 4 Cos is reverse of sin [start from right of sin values

mnemonics : Learn sequence of Nine planets

the nine planets in order: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto My Very Educated Mother Just Served Us Nine Pizzas: Many Very Energetic Men Jump Sideways Under Nelly Parker My Very Excellant Memory Just Stores Up Nine Planets. My very easy method just set up nine planets My Very Educated Mother Just Showed Us Nine Planets! Many voters earn money just showing up near polls Artha Visits Every Monday And Just Sits Until Noon Period Many Very Early Mornings Julie Sits Up Naming Planets Mary's Violet Eyes Make Johnny Stay Up Nights Period My Valet Edward Makes Juicy Sandwiches Using Needles & Pins

learn a trignometric formula

Some People Have Curly Brown HairTurned Permanently Black S = P/H Sin = Perpendicular / Hypotenuse Curly Brown Hair C = B/H Cos = Base/Hypotenuse Turned Permanently Black T = P/B Tan = Perpendicular/Base pandit bhadri parsad har har bole sona chandi tole perpendicular base perpendicular (p) (b) (p) hypotenuse hypotenuse base (h) (h) (b) sine cosine tangent (s) (c) (t) Sin = P/H, Cos = B/H, Tan = P/B  Some people have curly brown hair turned permanantly black. Some People Have Curly Black Hair  Through Proper Brushing

Maths Trick Time taken to double the money

You might have heard about time taken to double your invested money in X no. of years when agents are marketing about their product instead of straight away telling about effective rate of interest. So i am sharing you a trick to calculate rate of interest to double the amount if you know the time or vice versa in a matter of 3 seconds. Scope of formula : applicable to compound interest gives you a rough idea may or may not be accurate Applicable to double the amount Formula (Time taken to double Invested money) X (Rate of interest) = 72 Formula Check rate of interest be 10 % annualy, Investment amount Rs. 100000 using formula Time = 72 / Rate of interest = 72/10 = 7.2 years Amount = p  [(1+R%)^t] =100000 [(1+10/100)^7.2] =100000[(1.1)^7.2] =198621.99 Formula Pass :) If like the trick say Thanks 

Percentage - Net Discount after series of discounts

Net Discount after series of discounts Net Discount= (1- 1st discount%) X (1-2nd disscount %) and so on E.g. Discount on shirt 10% on 30% Net discount = (1-0.1)(1-0.3)=(0.9*0.7)=0.63 or say 63 % net discount Lets check this formula on shirt mrp 100 Rs. After First Discount =100-100*(10/100) =100-10 =90 After Second Discount =90-90*30/100 =90-27 =63 Percentage Change = Price After Discount / Original Price *100 =63/100*100 =63%