Choose the correct answer from the alternatives given. If 0<θ<90∘ then what is the minimum value of sin2θ+cos2θ+tan2θ+cot2θ+sec2θ++cosec2θ ? |
The correct Answer is:cosec2θ ... Step by step video, text & image solution for 1+cot^(2)theta=____. by Maths experts to help you in doubts & scoring excellent ... |
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L.H.S. = (1+cot2θ)(1−cosθ)(1+cosθ). ⇒ L.H.S. = (1+cot2θ)(1−cos2θ). ⇒ L.H.S. = cosec2θsin2θ. [∵1+cot2θ=cosec2θand1−cos2θ=sin2]. ⇒ L.H.S. = cosec2θsin2θ. ⇒ L.H.S. ... |
7 июн. 2016 г. · Please see below. (1-cot^2theta)/(1+cot^2theta)+2cos^2theta = (1-cos^2theta/sin^2theta)/(1+cos^2theta/sin^2theta)+2cos^2theta ... |
(i) 1+cot2 θ1+cosec θ=cosec θLHS=1+cot2 θ1+cosec θ=1+cosec2 θ−1cosec θ+1=1+(cosec θ+1)(cosec θ−1)cosec θ+1=1+(cosec θ−1)=cosec θ=RHS. (ii)1+tan2 ... |
Videolar Step by step video & image solution for (1-cot^(2)theta)/(tan^(2)theta-1)=cot^(2)theta by Maths experts to help you in doubts & scoring excellent marks in ... |
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