Question

if theta = 45 find 2 secsquare theta +3cosecsquare theta

Answer 1

HELLO DEAR,

theta=45°
we know that:-

sec45°= √2

cosec45°=√2
$2 { \sec }^{2} 45 + 3 { \cosec }^{2} 45 \\ = > 2 \times { (\sqrt{2}) }^{2} + 3 \times { \sqrt{2} }^{2} \\ = > 2 \times 2 + 3 \times 2 \\ = > 4 + 6 = 10$
I HOPE ITS HELP YOU DEAR,
THANKS

Answer 2

theta =45
2sec2 theta = 2sec2 45 =(root2)2
3 cosec 2 theta = 2cosec2 (root 2)2
2×2 +3×2
4+6
10

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