Trigonometry Question and Answers Practice Question and Answer
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5e81724bd063766356920d18 4 Q:
6321ad913169cb1b1567790b 4 Q:
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605c564922ce9764eb4d0d5e 4 Q:
5dd38448a46476101fbcb535 4 Q:
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60796ed42e8e292d5f941064 4 Q:
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Q: The value of $$ cos {20^o} cos {40^o}cos {60^o}cos {80^o}$$ is:
1246 05e81724bd063766356920d18
5e81724bd063766356920d18- 1$$ {1\over 15}$$false
- 2$$ {1\over 16}$$true
- 3$$ {1\over 12}$$false
- 4None of thesefalse
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Answer : 2. "$$ {1\over 16}$$"
Q: If is a positive acute angle and 5 cosθ + 12 sinθ = 13, then find the value of cosθ?
1240 06321ad913169cb1b1567790b
6321ad913169cb1b1567790b- 1$${12\over13}$$false
- 2$${5\over13}$$true
- 3$${5\over13}$$false
- 4$${1\over5}$$false
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Answer : 2. " $${5\over13}$$"
Q: If $$ {1+sinθ\over {1-sinθ}}={p^{2}\over{q^{2}}}$$, then sec θ is equal to:
1231 05f40dfa24c9a9415f7cdfc3b
5f40dfa24c9a9415f7cdfc3b- 1$$ {2p^{2}{q^{2}}\over {p^{2}+{q^{2}}}}$$false
- 2$${1\over 2}\left({q\over p}+{p\over q} \right)$$true
- 3$$ {1\over {p^{2}}}+{1\over {q^{2}}}$$false
- 4$$ {p^{2}q^{2}}\over{p^{2}+q^{2}}$$false
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Answer : 2. "$${1\over 2}\left({q\over p}+{p\over q} \right)$$"
Q: If a=tanθ + 1 and b=sinθ+cosθ then find (b2-1)a=?
1221 0605c564922ce9764eb4d0d5e
605c564922ce9764eb4d0d5e- 1abfalse
- 22bsecθfalse
- 32bfalse
- 42bsin θtrue
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Answer : 4. "2bsin θ"
Q: If 4sin2 θ – 1 = 0 and angle θ is less than 900. The value of cos2 θ + tan2 θ is:
(Take 00 < θ < 900)
1221 05dd38448a46476101fbcb535
5dd38448a46476101fbcb535(Take 00 < θ < 900)
- 1$$ 13\over 12$$true
- 2$$ 12\over 11$$false
- 3$$ 11\over 9$$false
- 4$$ 17\over 15$$false
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Answer : 1. "$$ 13\over 12$$"
Q: If $$ {tan3A=cot{(2A+40)}}$$ then find the value of $$ {tan^2{3A}}+{cot^{4}3A}$$.
1209 05f2e6d142b354b2550073a8a
5f2e6d142b354b2550073a8a- 1$$ {27\over 3}$$false
- 2$$ {28\over 3}$$true
- 3$$ {2\over 3}$$false
- 40false
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Answer : 2. "$$ {28\over 3}$$"
Q: One angle of a triangle is 55°. If the other two angles are in the ratio 9:16, find the angles?
1206 160796ed42e8e292d5f941064
60796ed42e8e292d5f941064- 165° और 115°false
- 290° और 160°false
- 355°और 165°false
- 445° और 80°true
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Answer : 4. "45° और 80°"
Q: If x+ y=90°, then what is the value of $$ {\sqrt{cosx.cosecy-cosx.siny}}$$?
1201 05f4df2b17e85226ee745ec9c
5f4df2b17e85226ee745ec9c- 1cosxfalse
- 2sinxtrue
- 3$$ {\sqrt{sinx}}$$false
- 4$$ {\sqrt{cosx}}$$false
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Answer : 2. "sinx"
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