Category: Trigonometry

Question Number 193390 by byaw last updated on 12/Jun/23 $$$$A ship X sailing with a velocity (21 kmh 052⁰) observes a light from…

Question Number 193381 by Mingma last updated on 12/Jun/23 Answered by som(math1967) last updated on 12/Jun/23 $$2{sin}^{2}4\theta +2{sin}^{2}2\theta -2{sin}^2\theta =1$$$$1-cos8\theta +1-cos4\theta -1+cos2\theta =1$$$${cos}\mathrm{2}\theta−\left({cos}\mathrm{4}\theta+{cos}\mathrm{8}\theta\right)=\mathrm{0} \…

Question Number 193349 by Mingma last updated on 11/Jun/23 Answered by som(math1967) last updated on 11/Jun/23 $$\mathrm{\angle }P=\mathrm{\angle }S$$$$\mathrm{\angle }Q=18\therefore \mathrm{\angle }P=90-18=72$$$$\therefore \mathrm{\angle }S=72$$ Commented by…

Question Number 193205 by Rupesh123 last updated on 07/Jun/23 Commented by a.lgnaoui last updated on 08/Jun/23 Answered by a.lgnaoui last updated on 07/Jun/23 $$\bigtriangleup\boldsymbol{\mathrm{ABC}}\:\:\:\:\measuredangle\boldsymbol{\mathrm{ABC}}=\boldsymbol{\alpha}\:\:\:\measuredangle\boldsymbol{\mathrm{ACB}}=\boldsymbol{\beta} \…

Question Number 193111 by cortano12 last updated on 04/Jun/23 $$\downharpoonleft \underset{―}{}$$ Answered by math1234 last updated on 04/Jun/23 Answered by horsebrand11 last updated on…