cos 48 ^∘ nbsp; sin 42 ^∘ nbsp;=cos( 90 ^∘ nbsp; 42 ^∘ nbsp;) sin 42 ^∘ nbsp;=sin 42 ^∘ nbsp; sin 42 ^∘ nbsp;=0 nbsp; nbsp; nbsp; ...

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Complementary Trigonometric Ratios

cos 48o-sin 4...

Question

$cos 48^{o} - sin 42^{o} = . . . . . . . . . . . . . .$

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Solution

$cos 48^{\circ} - sin 42^{\circ} = cos (90^{\circ} - 42^{\circ}) - sin 42^{\circ} = sin 42^{\circ} - sin 42^{\circ} = 0$

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Similar questions

cos 48^{o} - sin 42^{o}

\frac{cos 10^{o}}{sin 80^{o}} + sin 42^{o} \times 4 sec 48^{o}

A = | ({log}_{2} | cos 24^{o} |) + ({log}_{2} | cos 48^{o} |) + ({log}_{2} | cos 96^{o} |) + ({log}_{2} | cos 192^{o} |) |

1.5

P

P A, P B

P C

30^{o}, 42^{o}

60^{o}

P B

sin 42^{o} = \frac{2}{3}

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