9. Evaluate
a) tan 30° *sec 45º + tan 60° *sec 30°
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Answer:
tan 30° × sec 45 ° + tan 60° × sec 30°
1/√3 × √2 + √ 3 × 2/√3
√2/√3 + 2√3/ √3
(√2 + 2√3)/ √3
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tan 30° *sec 45º + tan 60° *sec 30°
1/√3*√2+ √3*2/√3
=√2/√3+3/2
=2√2+3√3/2√3
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