Prove that:
(1 + tanΘ)^2 + (1 + cotΘ)^2 = (secΘ + cosecΘ)^2
Answer:

The question is very much easy to solve if you know these basic things:
(a +b)² = a² + 2ab + b²
And
1 + tan²x = sec²x
i.e. sec²x - tan²x = 1
Also
1 + cot²x = cosec²x
i.e. cosec²x - cot²x = 1
And
tanx = sinx / cosx
Cotx = cosx/ sinx
Now, just see the image upside and you can visualize the answer.
Therefore, this is the process how you solve the given trigonometric identity,
(1 + tanΘ)^2 + (1 + cotΘ)^2 = (secΘ + cosecΘ)^2, in Trigonometry of Mathematics.
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