Question No. 17,Question No. 3,Question No. 4,Question No. 5,Question No. 6

Lesson#3 Question No. 4,Question No. 5,Question No. 6
Toolkit for Exercise 9.4
Prove the following identity:
Question No. 17
Q17: (tanθ+cotθ)^2 =sec^2 θ.cosec^2 θ
Question No. 3
Q3: cos⁡θ+tan⁡θ.sinθ=sec θ
Question No. 4
Q4: coses⁡θ+tan⁡θ.sec θ = cosec θ.sec^2 θ
Question No. 5
Q5: sec^2 θ−cosec^2 θ=tan^2 θ−cot^2 θ
Question No. 6
Q6: cot^2 θ−cos^2 θ=cot^2 θ .cos^2 θ
Exercise No. 9.4
Chapter No.9
Fundamentals of Trignometry
maths
part 1