1c:I[1254,["7330","static/chunks/d3ac728e-78c3d5d7a486ed3a.js","5159","static/chunks/5159-48592f0bf1a47f9d.js","8175","static/chunks/8175-f84d59b9bd013e10.js","8167","static/chunks/8167-b25693a0140130f2.js","664","static/chunks/664-f64584b506570f6e.js","3703","static/chunks/app/practice-question/%5Bslug%5D/page-d1408559b663b83f.js"],"PracticeQuestionCard"] 1b:T4be,{"@context":"https://schema.org","@type":"QAPage","name":"The value of the following is : ( 20^ )^2 ( cosec 70^ )^2 + ( 20^ )^2…","url":"https://vidyalelo.com/practice-question/the-value-of-the-following-is-and-frac-tan-20-pow-circ-pow-2-cosec-70-pow-circ-pow-2-frac-cot-20-pow-circ-pow-2-sec-70-pow-93558","keywords":"practice questions, MCQ, MCQs with answers, objective questions, competitive exam questions, Competitive Exams, Competitive Exams MCQ, Competitive Exams MCQs, Competitive Exams questions, Competitive Exams practice questions, Aptitude, Aptitude MCQ, Aptitude MCQs, Aptitude questions, Aptitude practice questions, Trigonometry","mainEntity":{"@type":"Question","name":"The value of the following is : ( 20^ )^2 ( cosec 70^ )^2 + ( 20^ )^2…","text":"The value of the following is : ( 20^ )^2 ( cosec 70^ )^2 + ( 20^ )^2 ( sec 70^ )^2 + 2 15^ . 45^ . 75^","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Option D. 3. Answer & Solution Answer: Option D Solution: ( 20^ )^2 ( cosec 70^ )^2 + ( 20^ )^2 ( sec 70^ )^2 + 2 15^ . 45^ . 75^ & ( 20^ )^2 se c^220^ + ( 20^ )^2 cose c^220^ + 2 15^ . 75^ & [ tan 15^ .tan 75^ = 1 . If, A + B = 90^ ] & ( ^220^ + co s^220^ ) + 2 & 1 + 2 & 3"}}}1d:T524,

Answer & Solution

Answer: Option D

Solution:

$$\frac{{{{\left( {\tan {{20}^ \circ }} \right)}^2}}}{{{{\left( {{\text{cosec 7}}{0^ \circ }} \right)}^2}}}$