Category: Trigonometry

Question Number 143857 by gsk2684 last updated on 19/Jun/21 $$\mathrm{if}{\cos }^4\theta \sec {}^2\alpha ,\frac{1}{2},{\sin }^4\theta {\mathrm{cosec}}^2\alpha$$$$\mathrm{are}\mathrm{in}\mathrm{A}.\mathrm{P}.\mathrm{then}$$$${\cos }^8\theta {\sec }^6\alpha ,\frac{1}{2},{\sin }^8\theta {\mathrm{cosec}}^6\alpha$$$$\mathrm{are}\:\mathrm{in}\:\mathrm{which}\:\mathrm{progression}? \…

Question Number 78311 by mathocean1 last updated on 15/Jan/20 $$\mathrm{Show}\mathrm{that}\frac{3+\sin 2x-2\cos 2x}{1+3{sin}^{2}x-cos2x}=\frac{2}{5}(2+\frac{1}{tanx})$$ Commented by jagoll last updated on 16/Jan/20 $$\frac{\mathrm{3}+\mathrm{2sin}\:{x}\mathrm{cos}\:{x}−\mathrm{2}\left(\mathrm{1}−\mathrm{2sin}\:^{\mathrm{2}} {x}\right)}{\mathrm{1}+\mathrm{3sin}\:^{\mathrm{2}} {x}−\left(\mathrm{1}−\mathrm{2sin}\:^{\mathrm{2}} {x}\right)}= \…

Question Number 12713 by ashok kumar last updated on 29/Apr/17 $$\mathit{Q}.\mathit{\theta }={\tan }^{-1}4/3$$$$$$ Commented by prakash jain last updated on 01/May/17 $$\mathrm{agar}\:\mathrm{ye}\:\mathrm{textbook}\:\mathrm{ka}\:\mathrm{question}\:\mathrm{hai}…

Question Number 12688 by frank ntulah last updated on 29/Apr/17 $$\mathrm{prove}$$$$\left(\frac{\sin (\mathrm{x}+\mathrm{y})}{\cos x\cos y}\right)=\tan x+\tan y$$ Answered by nume1114 last updated on 29/Apr/17 $$ifyoumean:$$$$\frac{\mathrm{sin}\:\left({x}+{y}\right)}{\mathrm{cos}\:{x}\mathrm{cos}\:{y}}=\mathrm{tan}\:{x}+\mathrm{tan}\:{y}\:\:…

Question Number 12613 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 26/Apr/17 Answered by b.e.h.i.8.3.4.1.7@gmail.com last updated on 28/Apr/17 Terms of Service Privacy Policy Contact: info@tinkutara.com