Solve the sum.........
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nidhi110:
fast guys...
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L.H.S
sec⁴A-sec⁴A*sin⁴A-2tan²A
(sec²A)²-(sec²A*sin²A)²-2tan²A
(sec²A+sec²*sin²A)(sec²A-sec²A*sin²A)-2tan²A
(sec²A+tan²A)(sec²A-tan²A)-2tan²A
(1+tan²A+tan²A)*(1)-2tan²A
(1+2tan²A)-2tan²A
1+2tan²A-2tan²A
1( proved)
sorry for late answer
please mark this as brainliest and ask where you didn't understand.
sec⁴A-sec⁴A*sin⁴A-2tan²A
(sec²A)²-(sec²A*sin²A)²-2tan²A
(sec²A+sec²*sin²A)(sec²A-sec²A*sin²A)-2tan²A
(sec²A+tan²A)(sec²A-tan²A)-2tan²A
(1+tan²A+tan²A)*(1)-2tan²A
(1+2tan²A)-2tan²A
1+2tan²A-2tan²A
1( proved)
sorry for late answer
please mark this as brainliest and ask where you didn't understand.
ok
hmm..
/explain thrid and fourth line plzz...
sec²A*sin²A=1/cos²A*sin²A=sin²A/cos²A=tan²A
oky
tnx
i have used the formula a²-b²=(a+b)(a-b)
anything else
hope you didn't mind for delay
yes....no prb
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