3 years ago

Prove: 1-tan^2 x/ 1+tan^2 x= 1-sin^2 x

Mathematics

1 answer:

Bas_tet [7]3 years ago

3 0

Check solution here.hope it will be of help.

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Using the diagram below, find x.

Alona [7]

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Step-by-step explanation:

$we~know~ that~ all~ the~ angles ~in ~a ~triangle ~all~add ~up ~to ~180$ ° $That ~means: x + ( 2x + 5 ) + ( 3x + 7 ) = 180.~Since~ addition~ is~ associative,\\~x + ( 2x + 5 ) + ( 3x + 7 ) = 180~ is ~the~ same ~as~ x + 2x + 5 + 3x + 7 = 180.$

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$After~ we ~move~ 12~ to~ the~ other~ side~ so ~the~ x~ is~ iscolated,~ we~ get:\\\ 6x = 168.\\$

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3 years ago

How do I do this!?! 2s+5 greater than or equal to 49

aev [14]

<span>2s+5>= 49
Subtract 5 from both sides
2s>=44
Divide 2 on both sides
Final Answer: s>=22</span>

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3 years ago