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Gekata [30.6K]
3 years ago
5

What angles could we find sine and cosine for using information for π/4 and π/6?

Mathematics
1 answer:
liberstina [14]3 years ago
7 0
Had to do a bit of guesswork to figure out what you're asking here.  If you're given the 2 angles pi/4 and pi/6, you can find any trig function of either angle.

The sine of pi/4 is  1 / sqrt(2); the cosine is the same.

The cosine of pi/6 is sqrt(3) / 2; the sine of pi/6 is 1/2.

If this isn't quite what you were looking for, try paraphrasing your question to make it clearer.
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a total of $9500 is invested, part at 10% simple interest and part at 9%. if the total annual return from the two investments is
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a total of $9500 is invested, part at 10% simple interest and part at 9%

if the total annual return from the two investments is $914.00

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Total amount return means total yield = $914

Let x amount  is invested at 10% simple interest

Interest for first part =  10 % times x = 0.10x

Remaining part invested is 9500 -x

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