百度试题 结果1 题目Find the value of the trig function indicated.1) Find cos θ if tan θ = (√ 3)32) Find sin θ if tan θ = 43 相关知识点: 试题来源: 解析 1) cos\ 30° =(√3)22) 35反馈 收藏
This allows us to calculate trigonometric functions of known angles without the use of a calculator. An example is given below. Answer and Explanation: We are asked to find {eq}\sin\dfrac{\theta}{2} {/eq}. We will do this using the following half-angle identity:...
What are trigonometric functions? Learn more about all 6 trig functions, which formulas to use and examples of how to solve different trigonometric problems. Related to this Question Find the exact value of (a) cos 945 ? and (b) sin ( ? 600 ? ) without a calculator. ...
As Michael pointed out, this is based on a trig identity you should know. I recommend printing out a list of them to keep handy while you study (or bookmark the page in your textbook). The one in question is a sum formula: cos(x+y) = cos(x)cos(y) - sin(x)sin(y) You ha...
In trigonometry, the period of a function refers to the distance of a function's wave. Learn how to find the period of a trig function by exploring...
Applying thelimitx →∞ for the function arctan (1/x) we get: limₓ→ ∞arctan (1/x) = arctan (1/∞) = arctan 0 = 0 Answer:0 Example 3:Evaluate theintegral∫011/(1+x2) dx? Solution: From theintegral formulas that involve inverse trig functions, we have ...
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Can the remainder or factor theorem be used when the divisor is in the following form (3x+1) or does it only work when the divisor is a polynomial with a coefficient of 1 in front of the x? Determine the value of 7!/6! without using a calculator. ...
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