(1 + cot A - cosec A ) ( 1+ tan A + sec A ) = 2
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1+ cot- cosec)( 1+ tan+ sec)
1+ cos/sin - 1/sin)( 1+ sin/cos + 1/cos)
sin+ cos - 1)( sin + cos +1)/ sin cos
( sin+ cos)^2 - 1)/ sin cos
sin^2 + cos^2 + 2sincos- 1)/ sin cos
2sin cos)/ sin cos
2
Answered by
8
Answer:
⇒ 1+ cot- cosec)( 1+ tan+ sec)
⇒1+ cos/sin - 1/sin)( 1+ sin/cos + 1/cos)
⇒sin+ cos - 1)( sin + cos +1)/ sin cos
⇒( sin+ cos)^2 - 1)/ sin cos
⇒sin^2 + cos^2 + 2sincos- 1)/ sin cos
⇒2sin cos)/ sin cos
⇒2
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