無料ダウンロード tan^2x-sec^2x=1 851019-5.25064634
Limit Trigonometric Function 2 Sec 2x 1 Tan X Youtube Dividing throughout the equation by cos 2 (x) We get sin 2 (x)/cos 2 (x) cos 2 (x)/cos 2 (x) = 1/cos 2 (x) We know that sin 2 (x)/cos 2 (x)= tan 2 (x), and cos 2 (x)/cos 2 (x) = 1 So the equation (i) after substituting becomes tan 2 (x) 1= 1/cos 2 (x) ——–(ii) Now we know that 1/cos 2 (x)= sec 2 (x) So on substitution equation (ii Divide both side by cos^2x and we get sin^2x/cos^2x cos^2x/cos^2x = 1/cos^2x tan^2x 1 = sec^2x tan^2x = sec^2x 1 Confirming 5.25064634