1. -4/√7
2. 2/√7
3. √7/4
4. √7/3
√7/4
1. (x2/25)+(y2/9)=1
2. (x2/9)+(y2/25)=1
3. (x2/5)+(y2/4)=1
4. (x2/4)+(y2/5)=25
(x2/25)+(y2/9)=1
1. 2√5
2. √5
3. 3√5
4. √5/2
3√5
1. 3/2
2. 2/3
3. -3/2
4. -2/3
3/2
1. 2
2. 3
3. 4
4. -3
3
1. logx/(1+logx)2
2. (1-x)/(y+xlogy)
3. (x-y)/xlogey
4. -logx/(1+logx)2
(x-y)/xlog<sub>e</sub>y
1. (2/3)tan-1(√x)
2. (2/3)tan-1(√x/3)
3. tan-1(√x)
4. (2/3)tan-1(√x/3)
tan-1(√x)
1. 4
2. 8
3. 16
4. 32
16
1. a|sinθ|sec2θ
2. asinθ|secθ|
3. a|sinθcosθ|
4. asin2θ|secθ|
asin<sup>2</sup>θ|secθ|
1. tan-1(1/3)
2. tan-1(3)
3. tan-1(1/2)
4. tan-1(2/3)
tan<sup>-1</sup>(3)