The value of cos is A: B: C: D: 相关知识点: 试题来源: 解析 D反馈 收藏
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What is the value of cos(105 degrees)?Question:What is the value of cos(105 degrees)?Trigonometric Sum or Difference Identities:In mathematics, the trigonometric sum or difference identities are used to find the sine, cosine, or tangent of the sum or difference of two given angles. Some...
Find the value of x. 2^{x^2 - 3} = 64 What is the value of x in the question below? \ln|2.57x|=0.57(0.62-0.39) Find the value of cos (17pi / 6) + tan (17pi / 6). Find the value of (1 + i)^7. (a) What is the value of y? (b) What is the value of x?
Learn the cos 30 degrees values in fractional form as well as in decimal form using both the theoretical and practical approach. Visit BYJU'S for more trigonometric values.
View Solution InΔABCa =5 ,b=3 ,c=7 .Then value of3cosC+7cosBis equal :- View Solution Ifasinx+bcos(x+θ)+bcos(x−θ)=d,then the minimum value of|cosθ|is equal to View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Cl...
To find the value of cos36∘, we will use trigonometric identities and known values of sine and cosine. 1. Use the double angle identity for cosine: cos(2θ)=1−2sin2(θ) Here, let θ=18∘. Therefore, cos(36∘)=cos(2×18∘). 2. Substitute into the identity: cos(36∘...
Cos 120°: ValueIn order to find the value of cos 120°, students need to draw a right-angled triangle (refer to the image below) and can use either of the two formulas i.e, cos (180° –θ) = – cosθ or cos (90° + θ) = – sinθ....
The result shows that the value of cos (π/7) can be written in two forms: one with ω and another without ω, where w h e r e = -1 √3/2. More explicitly, ... is defined to be the cube root of 1 3√3i that lies in the first quadrant of the complex plane and Re(z)...
What is the value ofcos(π2)? Question: What is the value ofcos(π2)? Value of the Cosine Function: Recall that the cosine function is the ratio of the adjacent side and the hypotenuse side of a right triangle. Some values of the cosine function at standard angles are as foll...