sin51^o + cos81^o =?

- cos21^o

No worries! We‘ve got your back. Try BYJU‘S free classes today!

sin132^o

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- sin132^o

No worries! We‘ve got your back. Try BYJU‘S free classes today!

cos21^o

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
cos21^o

Suggest Corrections

Similar questions

\sin \frac{5 π}{18} - \cos \frac{4 π}{9} = \sqrt{3} \sin \frac{π}{9}

\cos \frac{π}{12} - \sin \frac{π}{12} = \frac{1}{\sqrt{2}}

\frac{sin 63^{\circ}}{cos 27^{\circ}} + \frac{cos 39^{\circ}}{sin 51^{\circ}} - sin 23^{\circ} \cdot sec 67^{\circ} + {csc}^{2} 30^{\circ}

∠ C = 90^{\circ}, b = 4.5, ∠ A = 39^{\circ}

sin 51^{\circ} = 0.7771

sin 39^{\circ} = 0.6293

x, y

x {cos}^{2} 39^{\circ} = tan 26^{\circ} cot 39^{\circ} tan 86^{\circ} cos 78^{\circ} tan 34^{\circ}

y cos 81^{\circ} = cos 36^{\circ} - sin 36^{\circ} .

x + y^{2}

Join BYJU'S Learning Program