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Andru [333]
3 years ago
9

Help please urgent !1!1!1!1

Mathematics
1 answer:
allochka39001 [22]3 years ago
5 0
A. 108
B. 72
C. 36
D. 144

M. 63
N. 135
P. 63
R. ?
S. 50
T. ?


I apologize I couldn't see very well where r or t was :(
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Si en una empresa hay 120 trabajadores 3/8 son españoles y el resto europeos. Cuántos europeos hay?
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Prove the trigonometric identity
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Man this one is a world of its own :D Just a quick question are you a fellow Add Math student in O levels i remember this question from back in the day :D Anyhow Lets get started

For this question we need to know the following identities:

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Take LCM

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now break the LCM

\frac{-1}{-tan^2x}+\frac{-tan^2x}{-tan^2x}\\\\\frac{1}{tan^2x}+1\\\\cot^2x+1

because 1/tan = cot x

and furthermore,

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now we solve the above part and replace the bottom most part that we solved with cosec^2x

\frac{1}{1-\frac{1}{cosec^2x} } \\\\\frac{1}{1-sin^2x} \\\\\frac{1}{cos^2x}\\\\sec^2x

Hence proved! :D

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good luck!
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