If psinα=q sin(120°+α)=r sin(240°+α) prove that pq+qr+rp=0
If psinα=q sin(120°+α)=r sin(240°+α) prove that pq+qr+rp=0 If psinα=q sin(120°+α)=r sin(240°+α) prove that pq+qr+rp=0 Solution: P sinα=q sin(120°+α)=r sin(240°+α) or, …
SN Dey Class 11 Transformations of Sums and Product (যোগফল ও গুণফলের রূপান্তর)
All Math Problems of SN Dey Class 11 Transformations of Sums and Product are Available Here. সৌরেন্দ্রনাথ দে ক্লাস 11 ছায়া প্রকাশনী বইয়ের যোগফল ও গুণফলের রূপান্তর অধ্যায়ের সমাধান
if a cosφ=b cosθ then show that atanθ+btanφ=(a+b) tan$\frac{{\mathrm{\theta}} + {\mathrm{\phi}}}{2}$
if a cosφ=b cosθ then show that atanθ+btanφ=(a+b) tan$\frac{{\mathrm{\theta}} + {\mathrm{\phi}}}{2}$ if a cosφ=b cosθ then show that atanθ+btanφ=(a+b) tan$\frac{{\mathrm{\theta}} …
ProveThat,$\tan\theta tan\left(\frac{\pi }{3}+\theta \right)\tan \left(\frac{\pi }{3}-\theta \right)$=$tan3\theta$
$\tan\theta tan\left(\frac{\pi }{3}+\theta \right)\tan \left(\frac{\pi }{3}-\theta \right)$=$tan3\theta$ Prove that tanθ tan(π/3+θ) tan(π/3-θ)=tan3θ Solution: $\tan \theta tan\left(\frac{\pi }{3} + \theta \right)\tan …
$\frac{\sin \alpha sin11\alpha + sin3\alpha sin7\alpha }{\sin \alpha cos11\alpha + sin3\alpha cos7\alpha }$= $tan8\alpha$
$\frac{\sin \alpha sin11\alpha + sin3\alpha sin7\alpha }{\sin \alpha cos11\alpha + sin3\alpha cos7\alpha }$= $tan8\alpha$ Solution: $\frac{\sin \alpha sin11\alpha + sin3\alpha …
Prove That,sin 10°sin50° + sin50°sin250°+ sin250°sin10°=-3/4
sin 10°sin50° + sin50°sin250°+ sin250°sin10°=-3/4 Prove That,sin 10°sin50° + sin50°sin250°+ sin250°sin10°=-3/4 Solution: sin 10°sin50° + sin50°sin250° + sin250°sin10° = $\frac{1}{2}$ …
Prove That cos20° cos40° cos80° = 1/8
Prove That cos20° cos40° cos80° = 1/8 -This is an Important Sum of Class 11 Trigonometry of Transformations of Sums …