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please sara question solve it 1 question mat send karna
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6)
LHS = tan²Φ + cot²Φ
LHS = sec²Φ – 1 + cosec²Φ – 1
LHS = sec²Φ + cosec²Φ – 2
{ Wrong question RHS me sec²Φ aur cosec²Φ ke beech me plus hona chahiye}
7)
LHS = ( tanA + cotA )²
LHS = tan²A + cot²A + 2tanAcotA
LHS = tan²A + cot²A + 2
LHS = 1 + tan²A + 1 + cot²A
LHS = sec²A + cosec²A
LHS = RHS
Hence Proved
8)
LHS = ( sec²A – 1 ) ( cosec²A – 1 )
LHS = ( 1 + tan²A – 1 ) ( 1 + cot²A – 1 )
LHS = ( tan²A ) ( cot²A )
LHS = 1
LHS = RHS
Hence Proved
Properties Used :
1 + tan²Φ = sec²Φ
1 + cot²Φ = cosec²Φ
tanΦ = 1/cotΦ
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