Step by step video & image solution for (1+costheta)/(sin^2theta) is equal to by Maths experts to help you in doubts & scoring excellent marks in Class 10 exams.Updated on:21/07/2023 Class 10MATHSTRIGONOMETRIC RATIOS AND IDENTITIESSimilar...
Ifcosecθ+cotθ=c, then what is cosθequal to? View Solution Ifcosecθ−cotθ=12,0<θ<π2,thencosθis equal to View Solution (cosecθ+sinθ)(secθ−cosθ)tanθ+cotθ)is equal to View Solution The expression ofcotθ+cosecθ−1cotθ−cosecθ+1is equal to ...
对于复变的指数函数,我们在0.2讲中已经讨论了Euler公式: e^{i\theta}=\cos \theta + i\sin \theta ,据此,我们可以定义: 定义2:(复变指数函数)对于复数 z=x+iy \quad(x,y\in \mathbb{R}) ,我们定义指数函数 e^z=e^{x+iy}:=e^x\cdot e^{iy}=e^x (\cos y + i\sin y) 由于我们发现...
{ - \sin \theta + 2 \cos \theta \sin \theta } | _ { 0 - \frac { \pi } { 6 } } = $$ 因此由点斜式得: 切线方程$$ y - ( \frac { 1 } { 2 } - \frac { \sqrt { 3 } } { 4 } ) = x - ( \frac { \sqrt { 3 } } { 2 } - \frac { 3 } { 4 } ...
7.焦半径公式:$$ | P F | = \frac { p } { 1 - \cos \theta } . $$过抛物线$$ y ^ { 2 } = x $$的焦
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(1+tanθ+secθ)(1+cotθ−cosecθ)=? View Solution Expression (tan theta ) / (1-cot theta ) + (cot theta)/(1 - tan theta)- sec theta " cosec" theta The value of View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class...
What is 1−cos2(x) equal to? Trigonometric Identities:Trigonometric identities are equations that involve trigonometric functions. They are always true for every value of the variable where the functions on both sides of the equation are defined. They are often used in solving geometry problems ...
4.复数乘法的几何意义(1)条件:$$ : z _ { 1 } = r _ { 1 } ( \cos \theta _ { 1 } + i \sin \theta _ { 1 } ) , z _ { 2 } = r _ { 2 } ( \cos \theta _ { 2 } + $$$ i \sin \theta _ { 2 } ) $$.(2)运算:$$ : z _ { 1 } \cdot z...
\tan \theta = - \frac { 4 } { 3 } $$.(方∴ 法二)由$$\left\{ \begin{matrix} \sin \theta + \cos \theta = \frac { 1 } { 5 } \\ \sin ^ { 2 } \theta + \cos ^ { 2 } \theta = 1 \end{matrix} \right.$$消去cosθ,得 $$ \sin ^ { 2 } \theta - \...