Cot2 60° + sin2 45° + sin2 30° + cos2 90°
Websimplify\:\tan^2(x)\cos^2(x)+\cot^2(x)\sin^2(x) trigonometric-simplification-calculator. en. image/svg+xml. Related Symbolab blog posts. High School Math Solutions – … Web15. 4/cot2 30∘ + 1/sin2 60∘ − cos2 45∘. Solution: The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec)
Cot2 60° + sin2 45° + sin2 30° + cos2 90°
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Web分析:由已知得 30, 90,∴ 60 60 ,则 1 2 cos() 1 ,∴当 cos() 1,即 60 时, y m in 1 2 ,最大值不存在。 三、 忽视应用均值不等式的条件 a2 b2 例 5. 求函数 y (a b 0,0 x ) 的最小值。 cos2 x sin 2 x 2 错解 y a2 cos 2 x b2 sin 2 x (1) 2ab sin x cos x 4ab sin 2x (2) 4ab( 0 sin 2x 1) ,∴当 sin 2x ... WebJun 21, 2024 · Evaluate: tan2 60 + 4sin2 45 + 3sec2 30+5 cos2 90 / cosec 30+sec 60-cot2 30 - 4299421. ashwinjohn5600 ashwinjohn5600 21.06.2024 Math Secondary School answered Evaluate: tan2 60 + 4sin2 45 + 3sec2 30+5 cos2 90 / cosec 30+sec 60-cot2 30 See answers Advertisement
WebOct 2, 2024 · Evaluate each of the following cosec^3 30° cos 60° tan^3 45° sin^2 90° sec^2 45° cot 30° asked Feb 15, 2024 in Mathematics by sforrest072 ( 129k points) trigonometry WebClick here👆to get an answer to your question ️ Evaluate the following : sin^2 30^∘ cos^2 45^∘ + 4 tan^2 30^∘ + 12 sin^2 90^∘ - 2cos^2 90^∘ + 124 cos^2 0^∘
Webfind the value of: cos2 60° + sec2 30° + tan2 45° CISCE ICSE Class 9. Question Papers 10. Textbook Solutions 19278. Important Solutions 16. Question Bank Solutions 14679. … WebJan 9, 2024 · A. y f x sin6 x cos6 x 3sin2 x cos2 x sin2 x cos2 x . 3 B. f x sin2 x cos2 x . C. f x 13 1. D. f ' x 1. Hướng dẫn giải: Kiểm tra từng bước, ta có Bước A đúng vì sin2 x cos2 x 1 nên 3sin2 x cos2 x 3sin2 x cos2 x sin2 x cos2 x 3 Áp dụng hằng đẳng thức a b a3 b3 3ab a b nên bước B đúng.
WebMar 29, 2024 · Transcript. Ex 8.2, 1 Evaluate the following : "5 cos2 60 + 4 sec2 30 tan2 45 " /"sin2 30 + cos2 30 " We know that cos "60 = " 1/2 sec "30 = " 1/cos "30 " sec "30 ...
WebEvaluate: 4/cot2 30 + 1/ sin2 30 - 2 cos2 45 - sin2 0. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. routesmart indianapolisWeb篇一:高一物理三角函数知识补充. 高一物理三角函数知识补充. 力的合成与分解符合平行四边形定则。在平行四边形的邻边与对角线的关系中,有时要用到直角三角形的边角关系,等腰三角形、等边三角形、相似三角形等知识,希望同学们熟练掌握。 routesmart intersect 2022Web完整版高职高考数学主要知识点最新版可编辑修改word版高职高考数学主要知识点:1.集合的子集个数:集合a1 , a2, a3, , an的子集个数为2n 个;子集个数为2n 个;真子集个数为2n 1个.满足a1 , a2, a3, , am routesmart seattle timesWeb分析:由已知得 30, 90,∴ 60 60 ,则 1 2 cos() 1 ,∴当 cos() 1,即 60 时, y m in 1 2 ,最大值不存在。 三、 忽视应用均值不等式的条件 例 5. 求函数 y a2 cos 2 x b2 sin 2 x (a b 0,0 x) 2 的最小值。 错解 y a2 cos2 x b sin 1 sin x cosx [思路](1){x x 2k 且x 2k 2 k Z} (2)设 t=sinx+cosx,则 ... streaks colorsWebJul 6, 2024 · The value of (sin2 30° cos2 45° + 4 tan2 30° + 1/2 sin2 90° + 1/8 cot2 60°) = ? (a) 3/8 (b) 5/8 (c) 6 (d) 2. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. streaks comedyWebSep 28, 2024 · The value of 2 tan² 45° + cos² 30° - sin² 60° is 2. Step-by-step explanation: Given equation : 2 tan square 45 degree +cos square 30 degree- sin square 60 degree. The equation can be written as : 2 tan² 45° + cos² 30° - sin² 60° Now we know, tan 45° = 1. cos 30° = sin 60° = Substituting the values in the equation, routes into forensic psychologyWebEvaluate : `(i) sin^(2)30^(@)*cos^(2)45^(@)+4tan^(2)30^(@)+(1)/(2)sin^(2)90+(1)/(8)cot^(2)60^(@)` `(ii) (tan^(2)60^(@)+4sin^(2)45^(@)+3sec^(2)30^(@)+5cos^(2)... streaks crossword