Category: Trigonometry

Question Number 216094 by Mingma last updated on 27/Jan/25 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 215885 by a.lgnaoui last updated on 20/Jan/25 $$\mathrm{Area}\mathrm{of}\mathrm{ABC}?$$ Commented by a.lgnaoui last updated on 20/Jan/25 Answered by A5T last updated on…

Question Number 215679 by BaliramKumar last updated on 14/Jan/25 Answered by MATHEMATICSAM last updated on 14/Jan/25 $${\sec }^2\theta =\frac{4xy}{{(x+y)}^2}$$$$\Rightarrow {\cos }^2\theta =\frac{{(x+y)}^2}{4xy}$$$$\left({x}\:−\:{y}\right)^{\mathrm{2}}…

Question Number 215473 by alephnull last updated on 08/Jan/25 $$Solveforx$$$$$$$$2{sin}^{2}x+3sin\left(x\right)+1=0for0⩽x$$ Answered by Rasheed.Sindhi last updated on 08/Jan/25 $$\mathrm{2}{sin}^{\mathrm{2}}…

Question Number 215277 by efronzo1 last updated on 02/Jan/25 $$(1+\cos \mathrm{x})(1+\sin \mathrm{x})=\frac{5}{4}$$$$(1-\cos \mathrm{x})(1-\sin \mathrm{x})=?$$ Answered by MrGaster last updated on 02/Jan/25 $$\underset{\mathrm{Commutative}\mathrm{law}\mathrm{of}\mathrm{multiplication}}{\underbrace{(1+\cos x)(1+\sin x)\cdot (1-\cos x)(1-\sin x)}}=\left(\frac{5}{4}\right)(1-\cos x)(1-\sin x)$$$$\left(\mathrm{1}−\mathrm{cos}^{\mathrm{2}}…