百度试题 结果1 题目What is cos(90°−A) expressed in terms of a function ofA? 相关知识点: 试题来源: 解析 sinA sinA反馈 收藏
What is an angle which is equal to 360 degrees called? What is the complement of a 45-degree angle? What is the complement of an 88-degree angle? What is the complement of a 90 degree angle? What is the complement to a 32 degree angle? What is the complement of a 30 degree angle?
What is the y-value of cos(x) when x=90∘? Trigonometry: Trigonometry is a branch of mathematics that deals with the triangle-based problem. In this mathematics, we learn the relationship between angle and sides of the triangle. It also helps to study the property of the different...
The value of cos25∘+cos210∘+cos215∘+cos220∘+cos270∘+cos275∘+cos280∘+cos285∘ is equal to View Solution Knowledge Check What is cos80∘+cos40∘−cos20∘ equal to ? A2 B1 C0 D−19Submit cos20∘cos40∘cos80∘= A12 B14 C16 D18Submit If cos20∘...
He≈fuuung . 3. hat is ske doing? she ing jumping. 4. ulcat-ashedcdy: she is riding a bike 5. what is she doong? she is singing. 6. What is le doing? HesinSiOimiming 7. Lhat is he doing? He is playing bssketball. lUat-λaedcosθd 8.? He is playing football. ...
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But with the unit circle definitions of sin and cos, you can see this is equivalent to: tanθ=oppositeadjacent Or, thinking in terms of coordinates: tanθ=yx This explains why tan is undefined for 90° or −270° and 270° or −90° (where x = 0), because you ...
What is θ if o=10 and a=8? Trigonometric Ratios: The trigonometric ratio is used in many places where we have to find the length of some side of the triangle or the sides of the polygon. The right-angle triangle is to be given else the sine or cosine rule is to be used. Answe...
Trigonometry is the branch of mathematics that deals with the measurement of angles and the ratio of sides of a right-angled triangle. To know more about trigonometric ratios, formula, applications, visit Cuemath