Evaluate : cos 45 / sec 30 + 1 / sec 60
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cos45°/sec30°+1/sec60°
=(1/√2)/(2/√3)+1/2
=1/√2×√3/2+1/2
=√3/2√2+1/2
=(√3+√2)√/2√2
=(1/√2)/(2/√3)+1/2
=1/√2×√3/2+1/2
=√3/2√2+1/2
=(√3+√2)√/2√2
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