CBSE Class 11-science Answered
Pls solve
![question image](http://images.topperlearning.com/topper/new-ate/top_mob1674063094798685206IMG-20230118-WA0006.jpg)
Asked by sdmbotch1123 | 18 Jan, 2023, 23:01: PM
5 cosA + 3 = 0
cosA = -3/5 ; hence sinA = ![begin mathsize 14px style square root of 1 minus open parentheses 3 over 5 close parentheses squared end root space equals space 4 over 5 end style](https://images.topperlearning.com/topper/tinymce/cache/150496328d0538296d74746fef84684f.png)
![begin mathsize 14px style square root of 1 minus open parentheses 3 over 5 close parentheses squared end root space equals space 4 over 5 end style](https://images.topperlearning.com/topper/tinymce/cache/150496328d0538296d74746fef84684f.png)
Roots of quatratic equation :- 9x2 + 27x + 20 = 0
![begin mathsize 14px style x space equals space fraction numerator negative 27 plus-or-minus square root of left parenthesis 27 right parenthesis squared minus left parenthesis 4 cross times 9 cross times 20 right parenthesis end root over denominator 18 end fraction space equals space minus 4 over 3 space space o r space minus 5 over 3 end style](https://images.topperlearning.com/topper/tinymce/cache/793523b0d5b1610325e56cb71ae8c07f.png)
x = tanA or secA
Answered by Thiyagarajan K | 19 Jan, 2023, 07:49: AM
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