Without using tables- evaluate- 3 cos 80-cosec 10-2 cos 59- cosec 31-

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Trigonometric Ratio(sin,cos,tan)

Without using...

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Without using tables, evaluate: 3 cos 80⁰ cosec 10⁰ + 2 cos59⁰ cosec 31⁰

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Without using tables evaluate 3 cos 80⁰. cosec 10⁰ + 2 sin 59⁰ sec 31⁰

Evaluate :

$3 cos 80^{\circ} c o s e c 10^{\circ} + 2 sin 59^{\circ} sec 31^{\circ}$

3 cos 80^{o} . cosec 10^{o} + 2 sin 59^{o} . sec 31^{o}

Without using tables, evaluate :
$\frac{{cos}^{2} 20^{\circ} + {c o s}^{2} 70^{\circ}}{{s i n}^{2} 59^{\circ} + {s i n}^{2} 31^{\circ}}$

cosec^{2} 57^{\circ} - {tan}^{2} 33^{\circ} + cos 44^{\circ} cosec 46^{\circ}

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