document.write( "Question 1060384: Write 5sin(t)-12cos(t) in the form Asin(Bt+ϕ) using sum or difference formulas. \n" ); document.write( "

Algebra.Com's Answer #675350 by Edwin McCravy(20064) $\"\"$ $\"About$

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Write 5sin(t)-12cos(t) in the form Asin(Bt+ϕ) using sum or difference formulas.
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document.write( "We can just take B as 1.\r\n" );
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document.write( "So to make those identitically equal, we must have\r\n" );
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document.write( "(1)    and\r\n" );
document.write( "(2)   \r\n" );
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document.write( "Dividing equals by equals, using (2) and (1)\r\n" );
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document.write( "To get a positive coterminal angle we add 360°\r\n" );
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document.write( "   Squaring both sides of (1) and (2) and adding them:\r\n" );
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document.write( "Substituting:\r\n" );
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document.write( "Edwin

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