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Question Number 154958 by n0y0n last updated on 23/Sep/21

$$$$$$\mathrm{if},\mathrm{sinA}+\mathrm{sinB}=\frac{1}{5}$$$$\mathrm{then}\frac{6\mathrm{cosA}+13\mathrm{cosB}}{\mathrm{cosA}+6\mathrm{cosB}}=?$$$$$$

Commented by prakash jain last updated on 23/Sep/21

$$\mathrm{No}\mathrm{unique}\mathrm{answer}.$$$$1.\mathrm{put}\mathrm{A}=\pi /2$$$$2.\mathrm{put}\mathrm{B}=\pi /2$$

Commented by n0y0n last updated on 23/Sep/21

$$\mathrm{sinA}+\mathrm{sinB}=2\mathrm{then}\mathrm{not}1/5$$

Commented by prakash jain last updated on 23/Sep/21

$$\mathrm{I}\mathrm{meant}\mathrm{get}2\mathrm{solutions}$$$$\mathrm{once}\mathrm{put}\mathrm{A}=\pi /2$$$$\mathrm{second}\mathrm{solution}\mathrm{put}\mathrm{B}=\pi /2$$$$youcangetmanysolutionsince$$$$youhave2independentvariable$$$$andoneequation$$

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