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Jun 30, 2014 · Which of these scales is equivalent to the scale 1 cm to 5 km? Select all that apply. Hint: Change the ratio to cm:km and then compare the numbers.
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Nov 6, 2023 · Answer. Answer: Fisrtly , as it is given that sin A = P/H = 3/4 , now we will take P=3K , H=4K now by Pythagoras theorem B=√7K . Now, we will find other trigonometric ratios i.e. cos A , cosec A , tan A , sec A .
If secA×sinA=0 then find the value of A Get the answers you need, now! Tanmay0312 Tanmay0312 15.10.2019
Apr 25, 2020 · Answer: sinA/2×sinB/2×sinC/2 = (area of triangle)²/abcs Step-by-step explanation: We know, in a triangle of sides a,b,c and semi-perimeter (s)
Find an answer to your question Prove that sinA + sin3A + sin5A + sin7A / cosA + cos3A + cos5A + cos7A = tan4A
一句话：解三角形中，直接将sinA可以直接换成a或者a换成sin A其实是一种不太好的解题习惯. 严格的解题过程，都是用正弦定理将 \sin A 换成 \frac {a} {2R} ，或者将 a 换成 2R \sin A. 只是在大多数情况之下， 2R 的下场都是被约分，比如说下面这道题：. 因此久而久之 ...
Sep 27, 2018 · If cos A - sinA = root 2 sinA ,then proof that cosA + sinA = root2 cosA - 5901702
May 28, 2019 · The value of sina is and cos a is . Given: A equation . To Find: The value of sina and cosa. Solution: The equation is . Apply componendo and dividendo rule here. By comparing we get cosa = 1 and sina is √3. Hence, the value of sina is √3 and cosa is 1. #SPJ3
