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Evaluate sec^4A-sec^2=tan^4+tan2A |
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Answer» HI ! From LHS GIVEN that , sec⁴¢ - sec²¢ sec²¢ ( sec²¢ - 1 ) sec²¢ ( tan²¢) (1+ tan²¢ ) tan²¢ tan²¢ + tan⁴¢ Proved LHS = RHS ,. Used formula, = sec²¢ - 1 = tan²¢
__________________________ HOPE it's helpful
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