tan 9^{circ}-tan 27^{circ}-tan 63^{circ}+tan | vedclass

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Question

The value of $	an 9^{\circ}-	an 27^{\circ}-	an 63^{\circ}+	an 81^{\circ}$

$\Rightarrow 	an 9^{\circ}+\cot 9^{\circ}-	an 27^{\circ}-\cot 27^{\

Vedclass · Accepted Answer

$4$

Vedclass · Answer

The value of $	an 9^{\circ}-	an 27^{\circ}-	an 63^{\circ}+	an 81^{\circ}$

$\Rightarrow 	an 9^{\circ}+\cot 9^{\circ}-	an 27^{\circ}-\cot 27^{\circ}$

$\Rightarrow \frac{2}{\sin 18^{\circ}}-\frac{2}{\sin 54^{\circ}}$

$\Rightarrow \frac{2 	imes 4}{\sqrt{5}-1}-\frac{2 	imes 4}{\sqrt{5+1}}$

$\Rightarrow 4$

$\tan 9^{\circ}-\tan 27^{\circ}-\tan 63^{\circ}+\tan 81^{\circ}$ ની કિમંત $............$ થાય.

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