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Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12 Jan 8, 2022 ... Have an idea on how to solve the most popular question from trigonometry. If you feel it easy do not forget to share the links of the ... How do I prove sinA-cosA+1/sinA+cosA-1=1/secA-tanA? Upvote ·. 9 ... How can you prove that (cos^2 A-sin^2 B) / (sinA cosA+sinB cosB) =cot(A+B)? The RHS should be cot(A+B). Given sinA = cosA We know that sin 45 = cos45 = 1/ root2 Hence, A = 45 degrees Therefore, 2tan 2 A + sin 2 A - 1 = 2tan 2 45 o + sin 2 45 x sina + 2 cosa reduces to (since u sina and x sina are much larger than w cosa and z cosa, respectively). + (dw/dz) + (M/O?) = 0. (6). Since a disk is the ... Iscriviti ora per vedere cosa ti stai perdendo. Trova persone che conosci presso Sina Hotels. Sfoglia le offerte di lavoro consigliate per te. Visualizza tutti ... :I sina cosa. In subsection 2, R was defined as the radius of curvature at point x, is the curvature at the mid-point of the geodesic. Generally these two ... Nov 12, 2018 ... The side opposite it will be 4 and the hypotenuse will be 5 since the sine ratio is opposite/hypotenuse. Since it's right-angled you can use ... Dec 17, 2020 ... Calculation: (sinA + cosA)/(sinA – cosA) = 5/4 ⇒ 4(sin A + cos A) = 5(sin A – cos A) ⇒ 4sinA + 4cosA = 5sinA – 5cosA ⇒