Trignometric functions sinθ and cosθ,tanθ and secθ, cosec θ and cotθ obey sin2θ+cos2θ=1. A linear relation in sinθ and cosθ,secθ and tanθ or cosec θ and cosθ can be transformed into a quadratic equation in, say, sinθ,tanθ or cotθ respectively. And then one ...
Prove that 1/(1+sintheta)+1/(1-sintheta)=2sec^2theta . 01:38 Prove that sintheta/(1+costheta)+sintheta/(1-costheta)=2/sintheta . 01:51 (sinA-sinB)/(cosA+cosB)+(cosA-cosB)/(sinA+sinB)=0 . 04:58 If xcostheta-ysintheta=a and xsintheta+ycostheta=b , then prove that x...
If 2ycosθ=xsinθand2xsecθ−ycosecθ=3, then x2+4y2= A4 B−4 C−2 D2Submit If 2ycosθ=xsinθ and 2xsecθ−ycosecθ=3, then the relation between x and y is: A2x2+y2=2 Bx2+4y2=4 Cx2+4y2=1 D4x2+y2=4Submit If xsin3θ+ycos3θ=sinθcosθand xsinθ...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
if, sin^-1x + sin^-1y + sin^-1z =pi then prove that xsqrt(1-x^2) + ys... 06:19 If x = cosec[tan^(-1){"cos"(cot^(-1)(sec(sin^(-1)a)))}] and y="sec"[c... 10:51 Evaluate: sin{tan^(-1)(7/(24))} (ii) cos{cot^(-1)(5/(12))} 03:11 Solve: "cos...
Step by step video, text & image solution for If cos^4 theta sec^2 alpha,1/2 and sin^4 theta cosec^2 alpha are in A.P., then cos^8 theta sec^6 alpha ,1/2 and sin^8 theta cosec^6 alpha are by Maths experts to help you in doubts & scoring excellent marks in Class 12 exam...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
Class 12 MATHS If `cos^4 theta sec^2 alpha,1/2` and `si... If cos4θsec2α,12 and sin4θcosec2α are in A.P., then cos8θsec6α,12 and sin8θcosec6α are A AP B GP C HP D None of these Video Solution free crash course Study and Revise for your exams Unlock now ...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
If sin x + cos x = m(ne pm 1) and sec x + cosec x = n then n in terms of m is .