Question

If Sn denotes the sum of the products of tan square theta one,tan square theta two,tan square theta three and so on ,taken n together and an denotes the sum of the products of tan theta one,tan theta two,tan theta three and so on , taken n together, show that
1+S1+S2+S3+......= (1-s2+s4-...)2 +(s1-s3+...)2.

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

If Sn denotes the sum of the products of tan square theta one,tan square theta two,tan square theta three and so on ,taken n together and an denotes the sum of the products of tan theta one,tan theta two,tan theta three and so on , taken n together, show that

1+S1+S2+S3+......= (1-s2+s4-...)2 +(s1-s3+...)2.