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Rosario J.

Precalculus

4 days, 6 hours ago

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Given that sec(?)=?257 and ? is in Quadrant III, find sin(?) and tan(?)

So this question is given that set A. Is equal to minus 25 to 7 A Lies in the third quarter, third quarter and we have to find the value of sine and Now we know that sick will be called. The management have seven. Henceforth they will be equal to -2025 not a friend of mine. So from the identity cost operators and spherical one we can substitute the value of policy here. There is minus 70 25 square the science fair equals equals to one. So science per se will be equal to one minus this one squared minus 49 by 6 25. Okay The science fair, it will be called 576.625 for taking root boxes we get signed equal to plus minus of fruit. Fruit 5 76 by 6 25 plus minus 24 25. Now see in this question is given that this angle allies in the third quadrant. Okay and we know that in the third quadrant sine function is always negative. So sign, it can never be positive In the third person. So this plus value we cannot take okay so you protect the negative value. The design, it will be equal to -25-25. Okay so this is we cannot take sign a cool plot positive if signing called minus 24 25 then we can easily calculate will be called that is minus 24 or 25 by minus 7. 25 25 25. Really good counselor and then I will be called this also proves that as you know, is always positive in third quarter, as we have got a tan is also positive. Okay, so that is true.

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