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hello everyone
yup,.. neat...
also a good idea , another way of learning...
also great.
How about eliminating and substitute?
some of the equations?
4sin20sin20sin40tan30
4sin20cos20cos40=4sin20sin20sin40tan30
sin80So 4sin20sin20sin40tan30 should be sin10
is this correct?
Hello Everyone,
To get the product of two the same number.
Example:
12 x 12 = 144
To get et easily,
Multiply the first number (1x1) = 1
And then the last digit (2x2) = 4
And then to get the mid number simply like this (1x2) + (1x2) = 4
you will get an answer of 144...
try this one 26x26 ? =
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