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(CosΦ+secΦ)²+(sinΦ+cosecΦ)²=7+tan²Φ+cot²Φ

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(CosΦ+secΦ)²+(sinΦ+cosecΦ)²=7+tan²Φ+cot²Φ
  • 2 answers

Ramesh Singh 6 years, 10 months ago

It is in ncert so easy

Raj Kaushal 6 years, 10 months ago

Dono ko pahle a+b ke square par thod do answer aa jayega
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